http://bugs.winehq.org/show_bug.cgi?id=21907
--- Comment #12 from André H. nerv@dawncrow.de 2010-07-22 12:31:07 --- That comment didnt look forward either. Such comments are not helpful in any way and you should continue adding comments with useful information. As you already mentioned it looks like an Alphablending problem and really seems BSD specific as i did not heard of a linux user having such problems.
Still, a regression test would help.