http://bugs.winehq.org/show_bug.cgi?id=7814
--- Comment #21 from Vorobyov Anton phoenix@mail.ru 2008-08-20 14:35:33 --- Created an attachment (id=15505) --> (http://bugs.winehq.org/attachment.cgi?id=15505) Minimap overlapped by graphics from external applications.
Garbage apeearing on maps is taken from other applications aswell (e.g. see attaches screenshot - i was reading some guides (Epiphany browser with gecko backend) at cisco website and then decided to launch eve - minimap is overlapped with that page.
I don't know specifics, but to me it seems to be some memory management related problems.