http://bugs.winehq.org/show_bug.cgi?id=19254
--- Comment #1 from Göran Uddeborg goeran@uddeborg.se 2009-11-24 06:03:11 --- Philip Killough noted that if you change the display quality (in the "map" menu) from the default "fast" to "good", this problem goes away. Good as a workaround, and maybe also an aid in debugging?