I also have the same problem, I been having this since Karmic and in Lucid too. My system freezes when I try to enable any visual effects other than Normal. So for nearly 1 year I am using my pc in normal visual effects :(
I also have the same problem, I been having this since Karmic and in Lucid too. My system freezes when I try to enable any visual effects other than Normal. So for nearly 1 year I am using my pc in normal visual effects :(