http://bugs.winehq.org/show_bug.cgi?id=22487
--- Comment #3 from Alex Balut alexandru.balut@gmail.com 2010-05-11 16:39:29 --- I am using Ubuntu 9.10 64, and it works fine. Yes, when you move the mouse over the system tray icons you can see how they are redrawn (they flicker).
Were you using Compiz, or did you enable Extra Visual Effects in Appearance Preferences?