http://bugs.winehq.org/show_bug.cgi?id=4197
--- Comment #17 from Scott Russell bugzilla@bluecamel.eml.cc 2007-12-12 22:28:21 --- Thanks for explaining. Given that info, and looking at your previous attempt, I'll try to poke at it myself. Maybe I can see the WM_MDIACTIVATE calls in the traces...
Truthfully, this bug is easy for me to avoid. I'm seeing tons of CombineRgn() == nil calls (or something like that) as well. That one is what crashes me most often.