Hi Danny,

> Not a known issue. Please send details, preferably a small test program
> with detailed instructions on what's wrong and how to cause it.

Thanks for the quick reply. If necessary I'll have a go at the small
test program next week (I'm tied up before then), but in the meantime
you can see it for yourself by downloading our application from here:

http://svr-www.eng.cam.ac.uk/~rwp/stradx/installing_stradx_lnx.html

Click on "Download Stradx, StackSX and SelectSX now" and untar.

The executable you want to run is "stradx". It's linked against
libXm.so.1 but will work with libXm.so.2 as long as you don't open any
of the windows containing a glDrawingArea widget (in which case it
will segfault). So to compare the v1 and v2 appearance, try:

./stradx
LD_PRELOAD=/usr/X11R6/lib/libXm.so.2 ./stradx

To see the strange colours in the toggle buttons, open the
"Calibration controls" window from the "Calibration" menu. There are
two toggle buttons near the middle of the window. Press "Done" to
close the window, then open it again, and so on - you get pretty
random colours each time you open it. Only seems to happen with popup
shells, and doesn't happen with libXm.so.1. Relinking against Xm.so.2
doesn't help (this isn't a linking issue, honest!).

The widget hierarchy for the calibration controls window is:

popupshell -> rowcolumn -> togglebutton

I don't know whether you'll be able to get anywhere with this, but let
me know if you need a small test program and I'll try to come up with
one next week.

Best wishes,

Andrew
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