A drawback with TrueColor is that colormap changes are not displayed immediately in Tecplot. You will need to redraw to see changes. The Tecplot session in the mouse focus shows a correct colormap. This problem has occured on inexpensive X-servers. When I display remotely, strange display problems occur.
Red lines appear instead.
A faulty X11 patch may have been installed. These numbers are patch identifiers that HP uses for denoting patches. Contact HP support to obtain the corrected patches. When I bring up a dialog within Tecplot, there isn't title bar enabling the me to reposition the dialog. Edit the .fvwmrc or .twmrc file.