http://bugs.winehq.org/show_bug.cgi?id=13400
--- Comment #2 from t3st3r t3st3r@mail.ru 2008-05-24 15:43:36 --- (In reply to comment #1)
What window manager are you using?
Ringt now I'm using KDE's own manager, it's named KWin IIRC.Compiz is running but I did not replaced window manager so far.I may also give it a try with Emerald if you wish but it looks like this will not change anything.Asked friend to test with Gnome and there is same issue - in full screen there is window menu not hidden as well (menu of "windows" window, not window manager's stuff).
I suspect that to reproduce you can just launch HMM4 and try full-screen mode.If you still haven't got idea, compare full screen mode with original Windows then.There will be a real full screen without window menu bar when full-screen mode chosen.Probably there is some troubles in handling specific actions sequence or something like this so menu bar is not hidden in Wine but in windows it is.