http://bugs.winehq.org/show_bug.cgi?id=21039
--- Comment #7 from Chris sportflieger2004-wbug@yahoo.de 2010-01-02 01:26:57 --- I've run the app under Gnome (Ubuntu 8.04.3).
The good news is that the modal windows stay on top (I had to check "allow the window manager to controll the windows" in the winecfg), the bad that modal windows are gone (=not visible any longer) as soon as I iconify the main window - and I don't get them back (no icons, no windows in the taskbar etc. to click).
Another issue it that I get several warnings from the window manager, e.g.: "Fenstermanager-Warnung (=translation by me: 'window manager warning'): Received a _NET_WM_MOVERESIZE message for 0x360004a (QNH); these messages lack timestamps and therefore suck."
and
"Fenstermanager-Warnung: Fenster 0x360004a (QNH) zeigt durch einen MWM-Wink an, dass die Größe nicht veränderbar ist, setzt jedoch die minimale Größe auf 1 x 1 und die maximale Größe auf 2147483647 x 2147483647; dies ergibt keinen Sinn." (=that means:"window manager warning:MWM hint of the window 0x360004a (QNH) indicates that the window size cannot be changed but sets the min size to 1x1 and the max size to 2147483647...; that makes no sense")
QNH is one of the modal windows. I get the same message for the other modal windows too.