http://bugs.winehq.org/show_bug.cgi?id=12834
--- Comment #5 from Francesco Munda syylk@hotmail.com 2008-05-06 03:56:51 --- Update on my fullscreen blues:
1) Tried WINE 0.9.61 on WindowMaker 0.92.0 without my patch, and this problem is still present.
2) Tried WINE 0.9.61 on WindowMaker 0.92.0 with my patch, and the problem is fixed.
3) Tried WINE 0.9.60 and 0.9.61 on KDE 3.5.9 without my patch, and this problem is NOT present.
So, I guess it's a window manager related issue, as Stefan mentioned. Still, a conditional behavior based on the running wm could tremendously help WindowMaker users.