http://bugs.winehq.org/show_bug.cgi?id=20536
--- Comment #6 from Saverio Miroddi saverio.pub@inbox.com 2009-11-27 19:16:34 --- I incidentally installed the FGLRX proprietary drivers, and the glitch disappeared.
I can can confirm that with wine 1.1.33/FGLRX drivers installed/Ubuntu Karmic, the icons are fine.