http://bugs.winehq.org/show_bug.cgi?id=16502
--- Comment #2 from Arno Schuring aelschuring@hotmail.com 2008-12-14 13:24:52 --- Thanks for the pointer. I can confirm that the same problem still exists in current git (hadn't tested beyond 1.1.10), and that the problem disappears if I start the installer manually with -Dsun.java2d.noddraw=true added on the command line. I'll try to find a small, freely distributable Java app that has the same problem.
As an aside, I also tried simply reverting above commit on top of the current master tip, but that (predictably) results in merge conflicts.