  >> 
  >>    Environment:
  >>       mach/arch : sparc/sun4  (IPX)
  >>       OS	: SunOS 4.1.3
  >>       X11	: X11R5 (patchlevel 22)
  >>       Motif	: 1.2.2
  >> 
  >> I bring up X server using 'startx' and /usr/bin/X11/Xsun. The following sequence
  >> of actions crashes the X server (SIGPIPE, errno=32, 'xinit' reports that connexion 
  >> to X server lost):
  >
  >I had this problem as well - It had to do with the CG6 graphics card that
  >comes with the IPX.  What fixed the problem for me was to apply the "sunGX.uu"
  >that was part of Patch #7.  Patch #1 also used this file so perhaps you
  >didn't apply the one that came with Patch #7.
  >
  >jeff
  >-
  >Jeff W. Boote  <boote@ncar.ucar.edu>      *********************************
  >Scientific Computing Division             * There is nothing good or bad  *
  >National Center for Atmospheric Research  * but thinking makes it so.     *
  >Boulder                                   *                   Hamlet      *
  >                                          *********************************

Thanx, Jeff. You're a lifesaver. I imported the new sun GX emulator that came in
with patch #7. The problem has since disappeared.

Thanx to der (schoene) Mouse for his help too.
