HDTenEightyP/NetNews huggingface dataset:
From: maf@dtek.chalmers.se (Martin Forssen)
Subject: OOPS, error in the sunkbd patch ditribution
Organization: Chalmers University of Technology, Gothenburg Sweden
Date: Tue, 22 Dec 1992 21:46:54 GMT

 I just noticed (thanks goes to fcolin@geant.cenatls.cena.dgac.fr
 (Francois Regis Colin)) that one of the files in sunkbd.921216.tar.Z
 is faulty. The file is sunKeyMap.c and the fault is that it is an
 old version. The symptoms are that the new compose combinations
 (for example e + ^) doesn't work. I have now updated the patch
 at export.lcs.mit.edu . If you want to verify which version of
 the file you have you should seek for sunType4ComposeMap. The
 following is an excerpt from the correct file at that place:

KeySym sunType4ComposeMap[] = {
        XK_space,       XK_space,       XK_nobreakspace,
        XK_exclam,      XK_exclam,      XK_exclamdown,
        XK_C,           XK_slash,       XK_cent,
        XK_c,           XK_slash,       XK_cent,

 If you have the old version of the file the third row in the array
 differs.

	/MaF

--
Martin Forssen: maf@dtek.chalmers.se or maf@math.chalmers.se
System administrator at math and dtek at Chalmers univ. of technology 
Newsgroups: comp.windows.x
From: kenc@jiminy.viewlogic.com (Kenneth H. Cox)
Subject: how to get `xnews' to heed SaveUnder request?
Originator: kenc@jiminy
Organization: Viewlogic Systems, Inc.
Date: Mon, 28 Dec 1992 23:37:23 GMT


Hi, I'm running OpenWindows 3.0, and am having the problem
that `xnews' isn't heeding my application's request for SaveUnders
in the popup menus, with the result that the popup menus are SLOW.

Xnews appears to be saving under the popup menus where those menus
obscure other windows, but not where they obscure the window to which
the menus are attached!  Yikes!  The menu windows have 'override_redirect'
and 'save_under' set on them.

Any information or hints on debugging this are welcome!

-- 
Ken Cox                                 kenc@viewlogic.com
Software Guy
293 Boston Post Rd W
Marlboro, MA  01752                     "How do I work this?"
Xref: sparky comp.windows.x:20674 comp.sys.ibm.pc.rt:686
From: markw@airgun.wg.waii.com (Mark Whetzel)
Newsgroups: comp.windows.x,comp.sys.ibm.pc.rt
Subject: Re: X11R3 error message explanation
Summary: Most likely need the defaults files
Date: 31 Dec 92 17:51:10 GMT
Followup-To: comp.sys.ibm.pc.rt
Organization: Western Geophysical, Div. of Western Atlas Int'l, Houston, TX

In article <C0328q.JoF@cs.uiuc.edu>, bentrup@cs.uiuc.edu (John Bentrup) writes:
> 
> In trying to get X11R3 running on an IBM-RT(AIX) with only a minimum 
> amount of disk space, it has been necessary to move over the "minimum"
> number of files.  So far,  I can only get xclock to run.  
> 
> I get the error message:
> 
> 073-019  The aixwm command could not query the string width in SetUpWindow.
> 
> Any help on what file(s) I might still be missing?

You did not say if this was IBM's X11R3 for AIX/RT or your own
built X11, but here goes:

For IBM's X11R3 lpp product, you most likely are missing the
/usr/lpp/X11/defaults   directory and the files therein.
On my system these are:

total 268
drwxr-xr-x   2 root     system       288 Jan 23 1990  .
drwxr-xr-x   8 root     system       528 Feb  2 1990  ..
-rw-r--r--   2 root     system     14020 May  1 1989  .Xkeymap
-rw-r--r--   1 bin      bin         1471 May  1 1989  X.txt
-rw-r--r--   1 bin      bin         2189 Jul 20 1989  Xdefaults
-rw-r--r--   1 bin      bin          325 May  1 1989  Xfonts
-rw-r--r--   2 root     system     14020 May  1 1989  Xkeymap.us
-rw-r--r--   1 bin      bin         1582 Jul 20 1989  Xset.txt
-rw-r--r--   1 root     system      1771 Jan 23 1990  Xtools.txt
-rw-r--r--   1 bin      bin        31170 May  1 1989  keymap.uk
-rw-r--r--   1 bin      bin        34079 May  1 1989  keymap.us
-rw-r--r--   1 bin      bin         8116 May  1 1989  keymap.vt
-rw-r--r--   1 bin      bin         1754 May  1 1989  vtkeyboard

The aixwm window manager needs those text files to build up its 
popup memus, and what functions to invoke, and for the button bindings.

Make sure that you also have the directory
/usr/lpp/X11/messages
These contain the XLib error message database file.

Later,
markw
-- 
Mark Whetzel     My comments are my own, not my company's.
Western Geophysical - A division of Western Atlas International,
A Litton/Dresser Company           DOMAIN addr: markw@airgun.wg.waii.com
VOICE: (713) 963-2544		   UUNET address:  uunet!airgun!markw
Newsgroups: comp.windows.x
From: tma@encore.com (Thanh Ma)
Subject: Re: How does one determine the patch level of X11R4/5 being run?
Organization: Encore Computer Corporation
Date: Wed, 23 Dec 1992 14:18:35 GMT

I would like to know too.

--
Thanh Ma
tma@encore.com
Newsgroups: comp.windows.x
From: troberts@zia.aoc.nrao.edu (Timothy Roberts)
Subject: How do I skip spaces in an input panel?
Keywords: UIT, fields, blank space 
Organization: National Radio Astronomy Observatory, Socorro NM
Distribution: world 
Date: Wed, 30 Dec 92 19:14:52 GMT

I am using UIT to make a customized alphanumeric input panel.  The
idea is to allow the programmer to assign default values and max/mins
to a certain field with a certain length.  Sketch it?  OK.
 ________________________________
|                                |
|00 00 00.0 RA +00 00 00.000 DEC |  Position
|________________________________|
   ^  ^    ^^^^   ^  ^      ^^^^^
   |  |    ||||   |  |      |||||
   
How do I get the curser to immediately skip over positions like the
ones I have arrowed above?  It is trivial to make it so that the data 
entered in a position gets ignored but I want the user to know for
sure that he/she can't enter input in certain places.  Currently, I 
am simply using xv_set() and xv_get() to pass things around but maybe 
you know a better way?

--------------------------------------------------------------------
Timothy P. P. Roberts     troberts@NRAO.edu     505/835-7283
National Radio Astronomy Observatory, P.O. Box 0, Socorro, NM 87801
Newsgroups: comp.windows.x
From: eletanjm@nuscc.nus.sg (Tan Jin Meng)
Subject: X benchmarks
Organization: National University of Singapore
Date: Thu, 31 Dec 1992 04:42:49 GMT

I have a document which details some X11perf benchmarks. There is a
composite number stated for the X11perf and a footnote which says that
the number is derived from the 

"The Digital Review Methodology (5/7/90 Issue, p44)" 

I want to know how this number was derived. Could someone please tell me
how? 

Thanks.

jin meng
Newsgroups: comp.windows.x
From: djr48312@uxa.cso.uiuc.edu (Dennis Robinson)
Subject: HELP: xinit: interrupted system call (errno 4) client error
Organization: University of Illinois at Urbana
Date: Tue, 22 Dec 1992 19:31:32 GMT



Recently have reinstalled X11, for that matter all of linux.  Using
.98 patch level 1 or 2 (don't recall).  However now I am getting the
following error:

xinit: Interrrupted system call (errno 4) : client error

Before the error comes I get the slate grey screen, which then turns blue.
Mouse works fine...  And about 50% of the time the xclock appears.  The 
error occurs before the xterm or the twm window manager come into play.
Ive taken out the xterm & in the .xinitrc and the error still happeds.
A while ago I was getting this error:

waiting for X server to shut down X386 Version 1.2 / X Windows System [linux v1.
										

										1 8514/A alpha]                                                                 

										(protocol Version 11, revision 0, vendor release 5000)                          
																				
																														XIO:  fatal IO error 32 (Broken pipe) on X server ":0.0"^M                      
																															    The connection was probably broken by a server shutdown or KillClient.^M  



+-------------------------------------------------------------------+
| Dennis J Robinson               University of Illinois            | 
| Voice/Fax# (217-356-5894)       Computer Science Department       |
| Data/BBS   (217-356-9512)                                         |
| djr48312@uxa.cso.uiuc.edu                                         |
+-------------------------------------------------------------------+
From: maf@DTEK.CHALMERS.SE (Martin Forssen)
Newsgroups: comp.windows.x.announce
Subject: OOPS, error in the sunkbd patch ditribution
Date: 22 Dec 92 21:46:54 GMT
Distribution: inet
Organization: Chalmers University of Technology, Gothenburg Sweden


 I just noticed (thanks goes to fcolin@geant.cenatls.cena.dgac.fr
 (Francois Regis Colin)) that one of the files in sunkbd.921216.tar.Z
 is faulty. The file is sunKeyMap.c and the fault is that it is an
 old version. The symptoms are that the new compose combinations
 (for example e + ^) doesn't work. I have now updated the patch
 at export.lcs.mit.edu . If you want to verify which version of
 the file you have you should seek for sunType4ComposeMap. The
 following is an excerpt from the correct file at that place:

KeySym sunType4ComposeMap[] = {
        XK_space,       XK_space,       XK_nobreakspace,
        XK_exclam,      XK_exclam,      XK_exclamdown,
        XK_C,           XK_slash,       XK_cent,
        XK_c,           XK_slash,       XK_cent,

 If you have the old version of the file the third row in the array
 differs.

	/MaF

--
Martin Forssen: maf@dtek.chalmers.se or maf@math.chalmers.se
System administrator at math and dtek at Chalmers univ. of technology
From: rws@EXPO.LCS.MIT.EDU (Bob Scheifler)
Newsgroups: comp.windows.x.announce
Subject: X Technical Conference: Application Builder Video Session
Date: 27 Dec 92 20:50:28 GMT
Distribution: inet

An Application Builder videotape session has been organized by
Doug Blewett, AT&T Bell Labs, for Monday, January 18, 8pm to 10pm,
during the 7th annual X Technical Conference at the Sheraton Boston
Hotel and Towers in Boston, MA.  The following tapes are scheduled
to be shown:

Builder Xcessory
    Aub Harden, Integrated Computer Solutions, Inc.
HP Interface Architect
    Denise Scruggs, Hewlett-Packard Company
DEC Vuit (Visual User Interface Tool)
    Mike Smith, Digital Equipment Corp.
ADEW - A Multimedia Interface Builder for Andrew
    Tom Neuendorffer, Carnegie Mellon University
SUIT: The Simple User Interface Toolkit
    Matthew Conway, University of Virginia
An Xtent Application Builder
    Scott Anderson, AT&T Bell Laboratories
XF - An interface builder for Tcl/Tk
    Sven Delmas, Techn. University of Berlin
ezX: Rapid Prototyping and Application Development for Motif
    Fred Sells, Sunrise Software International
Ibuild: A Unidraw-Based User Interface Builder
    John Vlissides, IBM T.J. Watson Research Center
    Steven Tang, Stanford University
    Charles Brauer, Fujitsu Network Transmission Systems, Inc.
The Garnet Gilt Interface Builder: Graphical Styles and Tabs and
        Techniques for Reducing Call-Back Procedures
    Brad Myers, Carnegie Mellon University
Rollit: Building the Application Interface
    Solange Karsenty, Chris Weikart, DEC Paris Research Laboratory
FormsVBT: An Application Builder for Trestle
    Marc H. Brown and James R. Meeham, DEC Systems Research Center

The conference is sponsored by the MIT X Consortium, and consists of
tutorial, talks, and Birds of a Feather sessions.  An $85 registration
fee covers the entire conference including tutorials.  If you have not
received registration information, you can ask for it by sending a
request to registration@expo.lcs.mit.edu.  Advance registration must
be received by January 8, 1993.  Tutorial Session assignments are made
on a first-come, first-served basis.
From: kuwa@nff.ncl.omron.co.jp (KUWARI Seiji)
Newsgroups: comp.windows.x.announce
Subject: patch part 3 for X11R5/contrib/lib/Xwchar
Date: 28 Dec 92 03:55:41 GMT
Distribution: inet

I put a oficial patch part 3 for X11R5/contrib/lib/Xwchar from
OMRON Corporation on export.lcs.mit.edu.

Files are:
  ~ftp/pub/R5/contrib-fixes/Xwchar/README.p3
                                   patch3.Z

Please read README.p3.

Changed points:

  Maked adjustment for changing of wcharint.h in mit-patch-level-21.
  Fixed a bug of wchar.man

-----------------------------------------------------------------------
 Seiji Kuwari (kuwa@nff.ncl.omron.co.jp)
 OMRON Corporation		
				Phone: +81-75-951-5111 (ext. 3631)
-----------------------------------------------------------------------
From: dus@dusws1.ctd.ornl.gov (Steinert D A)
Subject: xdm and magic-cookie help
Reply-To: dus@dusws1.ctd.ornl.gov (Steinert D A)
Organization: Oak Ridge National Laboratory
Date: Tue, 29 Dec 1992 21:15:54 GMT

I am trying to use xdm on a DECstation 3100 running X11R4.  Is there
any way keep xdm from generating a new magic cookie string every
time I login?  I would like to be able to use the same cookies over and
over again from clients on remote systems.  As it is now I have to copy 
the new .Xauthority entries to the remote systems every time I log
into my server machine.  I am new to xdm and don't have much
documentation.

Thanks for any help
Deryl Steinert
dus@ornl.gov
Newsgroups: comp.windows.x
From: jbian@haida.mentorg.com (Jonathan Bian)
Subject: List wanted for known bugs in the MIT X11R4 server.
Originator: jbian@haida
Date: Wed, 23 Dec 1992 21:42:07 GMT
Reply-To: jonathan_bian@mentorg.com
Organization: Mentor Graphics, Wilsonville, Oregon 97070, USA
Keywords: 
Followup-To: 


Does anyone know where I can get a list of known bugs in the X11R4 MIT 
sample server (specifically on Sun Sparc)?  

Please e-mail to jonathan_bian@mentorg.com because I don't usually read
this news group.

Thanks in advance!
From: davidh@muppet.bt.co.uk (David Hobley)
Newsgroups: comp.windows.x
Subject: Re: tvtwm - cannot link
Date: 31 Dec 92 08:50:36 GMT
Reply-To: davidh@muppet.bt.co.uk
Organization: British Telecom Research Laboratories

In article 178707@ipgaix.unipg.it, luca@dedalo.unipg.it (Luca Priorelli) writes:
>I am trying to compile tvtwm on a SPARCstation with Solaris 1.0.1.
>I am using the X files in the openwin distribution (should be X 11.4).
>
>The compilation is done right but when I link I get the following undefined
>symbols:
>_pow
>_floor
>_get_wmShellWidgetClass
>_get_applicationSHellWidgetClass
>__XtInherit
>_XtToolkitInitialize
>
>It seems I still have to add something. Any hints?
>
>Thamk you.
>
>Luca Priorelli

I believe there is a problem with the Xt dynamic library under Openwindows.
Try compiling with -Bstatic on the command line and see if that works. If so you
can specify -Bstatic -lXt -Bdynamic (I think) or in whatever order it should be
in :-)

---
        David Hobley    davidh@muppet.bt.co.uk
Through the darkness of futures past / The magician longs to see.
One chance out between two worlds    / Fire walk with me.
From: mouse@thunder.mcrcim.mcgill.edu (der Mouse)
Newsgroups: comp.windows.x
Subject: Re: new FAQ? (programming) masking Pixmaps *efficiently*
Keywords: Pixmap, mask, bitmap, graphic context
Date: 22 Dec 92 18:39:57 GMT
Organization: McGill Research Centre for Intelligent Machines

In article <1992Dec21.034512.18081@labtam.labtam.oz.au>, graeme@labtam.labtam.oz.au (Graeme Gill) writes:
> In article <1992Dec18.012904.15093@thunder.mcrcim.mcgill.edu>, mouse@thunder.mcrcim.mcgill.edu (der Mouse) writes:
>> In article <1992Dec15.152852.2528@miki.pictel.com>, oj@miki.pictel.com (Oliver Jones) writes:
>>> In article <1992Dec11.180230.10091@elroy.jpl.nasa.gov> sns@bondi.jpl.nasa.gov (Sam Southard) writes:
[These attribution lines have been corrupted; the next text is actually
mine.  I don't trust the rest all that much either...]
>>>> The server in question is probably doing the common thing and
>>>> converting clip-masks to rectangle lists.
>> Yes...but the choice of this implementation means that clip-masks
>> that don't decompose nicely into rectangles will be expensive to set
>> and somewhat expensive to use.
> The reason anything more sophisticated has been put in the "too hard"
> basket (I guess) is that you basically would have to go around and
> duplicate every piece of rendering code in the X server.  You then
> have to add an arbitrary bit clipping mask to one half of the
> duplicated code on top of everything else [...]

The unclipped case should be a trivial special case of the clipped
case.  Since the code already runs at memory bandwidth speeds on most
machines, I am not convinced it's not worth doing.

> There is no incentive for anyone to do this while very few
> applications make use of an arbitrary bit mask.  Application writers
> will tend to avoid using arbitrary clipping masks because they know
> they will be slow.

Nobody uses it because it's slow; and it's slow because nobody works on
it because nobody uses it.

That sort of reasoning would have kept anyone from building X to begin
with!  More likely just nobody's felt up to bothering.  Perhaps some
long winter month when I have nothing else to do (ha!)....

					der Mouse

			    mouse@larry.mcrcim.mcgill.edu
From: jason@ab20.larc.nasa.gov (Jason Austin)
Newsgroups: comp.windows.x
Subject: Re: HELP: How to "fake" a pgup or pgdn for a motif scrollbar?
Date: 22 Dec 92 09:19:30
Organization: NASA Langley Research Center, Hampton, VA
Reply-To: Jason C. Austin <j.c.austin@larc.nasa.gov>
NNTP-Posting-Host: ab20.larc.nasa.gov
In-reply-to: rharmon@uucp's message of 21 Dec 92 13:58:41

In article <RHARMON.92Dec21135841@triton.uucp> rharmon@uucp (Robert Harmon) writes:
-> In article <BzFHA9.ICu@news.cso.uiuc.edu> datl@uxa.cso.uiuc.edu (le dat trieu) writes:
->    How can I invoke the appropriate Motif callback for a scroll bar as if
->    the user
->    has selected page up or page down on a scroll bar.  I have a scrolled window
->    with several text widget in it for user input.  A page up or page
->    down scrolls
->    to the previous or next row of text widgets.  I need to be able to
->    display the
-> 
-> 
-> Motif doesn't provide a way to do stuff that can be easily done in Xt.
-> 
->   XtCallActionProc (Widget, String action, XEvent *event,
->                        String *params, Cardinal num_params);
-> 

	I don't understand your comment.  Motif is a widget set that
is used with Xt.
--
Jason C. Austin
j.c.austin@larc.nasa.gov


Newsgroups: comp.windows.x
From: terescoj@tardis (Jim Teresco)
Subject: X11R5 expose problem
Summary: Problem with expose events in R5 server on Sun 3/50
Keywords: Sun 3/50, X11R5, gcc 2.3.2, expose events, PL21
Organization: Union College, Schenectady, NY
Date: Wed, 30 Dec 1992 22:50:53 GMT

We recently installed X11R5 PL21 on a network of Sun Workstations.
The machines include Sparcs (both color and mono), 2 color 3/80's, 2
color 3/60's and 2 mono 3/50's.  All seems well except on the 3/50's.
The server when run on those machines seems to fail to deliver many
expose events.  The biggest problems seem to be with the xclock
(digital mode), and with xterms.  The xclock never seems to get an
expose event.  I can run xclocks from several machines, and none work
on the 3/50.  Xterms do not get expose events when the window receives
output, but is not raised.  If I cover and uncover the xterm, the
event is delivered and I can see what is there.  I also have noticed
the problem in the pop-up menus of twm.  Some menu entries do not get
drawn properly.  The version I am running was built on a Sun 3/80
using gcc 2.3.2.  I get these problems if I use the server named
"XSun" as well as the one named "XSunMono".  Has anyone else had this
problem?  I have only seen it on the 3/50's here.  Any suggestions
would be appreciated.

Thanks,
Jim Teresco, terescoj@tardis.union.edu
--
Jim Teresco, Union College C.S. Depatrment Graduate Assistant
Dept. of Computer Science, Union College, Schenectady, NY 12038
terescoj@tardis.union.edu, terescoj@UNION.BITNET, (518)370-{6408,6532}
Owner/GM, Amsterdam Ice-9 - Bitnet Fantasy League Baseball
Xref: sparky comp.windows.x:20603 comp.windows.x.motif:8244
From: english@alicudi.usc.edu (Joe English)
Newsgroups: comp.windows.x,comp.windows.x.motif
Subject: Re: Help Request for mwm send.msg
Date: 29 Dec 1992 11:17:37 -0800
Organization: Nerds of Action
Distribution: world
Reply-To: joe@trystero.art.com
NNTP-Posting-Host: alicudi.usc.edu
Keywords: Motif, mwm, send.msg, XChangeProperty, Atom


In article <1992Dec22.134147.18146@cbnewsj.cb.att.com>, daver@cbnewsj.cb.att.com (dave.robertson) writes:

|> I am having problems trying to use the send_msg function in mwm.
|> I need to add an application specific capability to each window
|> manager menu, and I believe that this can be achieved in this manner.

|> Firstly in my mwm configuration file I define the menu as follows : 
|> 
|> Menu DefaultWindowMenu MwmWindowMenu
|> {
|>     MyFunc              f.send_msg 123

You probably should *not* put this in the mwm configuration file.
There's no guarantee that 123 will correspond to a valid atom.
(I have no idea why f.send_msg wants the atom number instead of
the atom name as it's argument; it looks like a serious design bug.)

What I do instead is something like:

    Atom message_atom;
    message_atom = XmInternAtom(dpy, "MY_MESSAGE", False);
    sprintf(buf,"MyFunc       f.send_msg %d\n",(int)message_atom);
    XtVaSetValues(shell, XmNmwmMenu,buf, NULL);
    /* Or: */
    Atom motif_wm_menu = XInternAtom(dpy,"_MOFTIF_WM_MENU", False);
    XChangeProperty(dpy,win, motif_wm_menu, motif_wm_menu, 8, 
        PropModeReplace, buf, strlen(buf));

i.e., add the extra menu options from the application itself, not
from the Mwm configuration file.


|> wm_motif_messages = XInternAtom(dpy, "_MOTIF_WM_MESSAGES", FALSE);
|> static	int	helpmsg = 123;
|> 
|> XChangeProperty(dpy, win, wm_motif_messages, XA_INTEGER, 32,
                                                ^^^^^^^^^^
|>                 PropModeReplace, (unsigned char *) &helpmsg, 1);

This could be the problem; _MOTIF_WM_MESSAGES is supposed to be
of type ATOM.  You also might want to make sure that _MOTIF_WM_MESSAGES
is in the WM_PROTOCOLS list, though I'm not sure if it's necessary.
I think that the VendorShell(?) does this automatically.

It's easier just to use:

    XmAddProtocolCallback(shell, _motif_wm_messages, message_atom,
        MyCallback, MyCallbacksClosure);

but since you're not using the Motif toolkit that's not an
option.

Hope this helps,

--Joe English

  joe@trystero.art.com
From: merritt@macro.bu.edu (Sean Merritt)
Newsgroups: comp.windows.x
Subject: Cheap(inexepnsive) X-terminals
Date: 22 Dec 92 16:03:02 GMT
Organization: Boston University Physics Department


My reasearch group is looking to buy one or two X-terminals.
I would appriciate e-mail with recommendations, based on
price and performance. We have had NCD suggested to us,
if people have experiance using their equipment with an 
SGI IRIS in particular even better. If possible please
include manufacturer's 800 number.


thanks in advance,

-sjm


-- 
Sean J. Merritt		         | "Every revolt is a cry of innocence    
Dept of Physics Boston University|  and an appeal to the essence of being."
merritt@macro.bu.edu             | Albert Camus, The Rebel
From: nuytsm@logica.co.uk
Newsgroups: comp.windows.x
Subject: DECwindows funny
Date: 21 Dec 92 10:45:26 GMT


Has anyone else seen this problem with DECwindows ?

Occasionally, we get dialog boxes (normally quite straight forward
- just a simple text field, a label and a couple of pushbuttons)
that are displayed very small ie. just the very top left hand corner.

The application has several modeless dialog boxes and the one chosen to be
small seems to be random.  This happens every few days.  The application
runs 24 hours a day, 365 days a year. Approx 200-300 dialog boxes get
displayed a day.

The client runs on a VAX 3900, VMS 5.5, the server on a VS2000, VMS 5.3.
(Although I've seen this problem also on a VS3100 running 5.5)

If anyone has seen this problem, do you know why it happens and if there
is a cure ?


Thanks.

Dave.