you are not the only one with that problem, seems as if there are a number of things 'different' in knoppix 3.2. I'll try to update them in the next release to the official knoppix 3.2, if that doesn't work we can always fall back on the old knoppix 3.1 hardware detection files

Trying out a few gnome/gtk games now, they seem to work pretty well. Just note that there are a few servers inbetween the games. Wouldn't need a systematic test of everything (bah, too much work ) but if something doesn't work try it in a terminal first to check what is happening.