http://bugs.winehq.org/show_bug.cgi?id=16958
--- Comment #5 from Kevin DeKorte kdekorte@yahoo.com 2010-07-20 07:53:38 --- I have a dual head setup with an ATI x6xx series card. I'm using the open source drivers fro the radeon card.
I've not ran into this problem in awhile since I have been running with virtual desktop mode. This problem does not happen in that case.