Comment 65 for bug 656241

Just a tip for all ubuntu users, if it is not mentioned somewere above: Before starting up mixxx, make sure you have compiz disabled. To do so, turning it off, or setting the visual effects to off, isn't enough cause compiz window manager would still run in the background.
Just hit Alt + F2 and type , "metacity --replace". This is the only way to disable compiz completely. If you need to revert back, Alt + F2 "compiz --replace". Quotations excluded ofcourse.