I am having the same problem, the mouse functions perfectly in regular X apps (such as iceweasel) but it behaves wrong in all games that I have tried (quake3, rtcw:et, doom3). The scrollwheel used to be recognized as "MWHEELUP" and "MWHEELDOWN", but now the same actions are recognized as "button4" and "button5" instead. Changing the binds to reflect this helps a bit, but the scrolling behaviour is very jumpy and inaccurate. I would like this to be solved, since it prevents the playing of any modern game that involves the mouse.
-- hiding.out at gmail.com
