This old issue seems to be still happening for me, using winxp: http://isiforums.net/f/showthread.php/7690-CTD-when-switching-windowed-fullscreen I have had OS reinstall meanwhile, had no effect to issue.
Do you commonly have issues with this in other software? I know it's ALWAYS possible for it to happen with any software in XP, but I thought it was ALMOST gone now... Does it happen every time?
Well, it does happen still even installed OS from scratch, does not happen with other software and I have been able to reproduce it quite reliably by starting full screen mode, then lowering resolution ingame settings and choosing windowed, then apply, after that back to orignal resolution and full screen, apply and CTD happens. As with new OS there is nothing of old, it minimizes quite many possibilities, gfx driver is of course one possibility, but as I got rid of every issue I had before current driver, I hesitate to switch to another one.