http://bugs.winehq.org/show_bug.cgi?id=6900
------- Additional Comments From tom@dbservice.com 2007-26-04 09:58 ------- Actually, I think it's a bug in WoW and not wine. One that only appears if only one pixelformat is available (basically an off-by-one bug). Sine we can't expect blizzard to fix or even look into it, you'll have to wait until the window handling code in winex11.drv is fixed, because I think Thunderbird said that once the opengl child window problem is resolved, he'll add more pixelformats, which will 'fix' this bug :)