http://bugs.winehq.org/show_bug.cgi?id=20781
--- Comment #3 from Jeff Zaroyko jeffz@jeffz.name 2009-11-21 11:34:21 --- (In reply to comment #2)
It might be some changes since 1.1.18 triggers bugs in radeon KMS code. It would be really nice if any wine experts can locate the problem and report it to KMS.
You could find the commit that introduced the problem with KMS using git bisect, http://wiki.winehq.org/RegressionTesting - it might indicate the issue.