http://bugs.winehq.org/show_bug.cgi?id=23906
--- Comment #40 from Erich Hoover ehoover@mines.edu 2012-07-13 12:00:52 CDT --- (In reply to comment #39)
This problem vanished for me today when I updated to nvidia driver 295.20 Using wine-1.4-rc3
My new computer was never affected by the issue and my old one is toast, but it does not surprise me that this was a result of a driver bug. So, I'd say it's probably time to close this bug.