http://bugs.winehq.org/show_bug.cgi?id=4087
------- Additional Comments From vitaliy@kievinfo.com 2005-16-12 15:46 ------- I think it's a known problem with minimizing/restoring any window. Wine doesn't communicate with window managers (Gnome, KDE, etc) and does not know that window got minimized or restored. All Wine knows is that window got mapped/unpapped to/from the screen (showen/hidden).
Try this in virtal desktop mode. If it works then it _is_ the problem.