Oh right, ZQuest... Forget what I said about triple-buffering then. Sorry. I don't see the cause off hand, but points of interest:
Is there a screen resolution in ZQuest that your computer will support? If not then fullscreen is probably impossible without DXGL or something similar. (800x600 is 4:3; does ZC run fullscreen at 800x600?)
I couldn't add custom resolutions in ZQ (too much work at the time; impractical) at the time they were added to ZC, but I can take another look if it's something that users really want. I just always thought that people preferred ZQ to be in windowed mode. I don't think I've ever run ZQ in fullscreen since 1.93.
Do we have a Mac guy at all?
