“Fortunately it’s simple to get working” and then later “unfortunately it conflicts with other openGL apps” made me laugh. I tried the same on my ThinkPad T42p some time ago, wasn’t successful, and I still haven’t gotten around to properly clean up after myself — which will likely mean a clean install.

On my Dell Dimension E520 running Ubuntu 8.04 (Beta) which I have for a couple of weeks, there are some new effects on by default, but I’m not sure I find them to be an improvement. I’ll try them until the final 8.04 release, and then consider disabling them.