http://bugs.winehq.org/show_bug.cgi?id=23745
--- Comment #41 from Roman m01brv@mail.ru 2013-09-20 09:54:59 CDT --- I recently checked this bug with the latest updates of my KUbuntu 12.10 (KDE 4.9.5, wine 1.6 as well as 1.7.1). Surprisingly, I found that the bug is *almost* gone now. "Almost" means that the freezes are now rare - they occur approximately once per each ~10 minimize attempts.
I feel that the behaviour significantly depends on the KDE or X versions, not just on wine itself.