I know this is minor, but I think it worked in the past...
I start out ZC in fullscreen mode. Then, I click on Fullscreen under Misc. Once the screen redraws, I check the Misc. menu again, and Fullscreen is still checked (although it is now in a window).
Ha! This bug has probably been around since zc 1.93 or earlier since it hasn't been 'till recently that switching graphics modes wouldn't cause a crash.
edit: ..ok, too much caffeine.
Oh yeah, that's right, I remember that. 😃
In fact, the first time I did this (on 1105) it crashed again, so I was coming here originally to report a different bug, but I haven't been able to reproduce it yet. I may've done something a little bit different that time.
OK, fixed.