Quote Originally Posted by Mark_Twain View Post
I used 6.4.3 on a flash drive with persistent storage as my only operating system for more than a year. I thought I understood Knoppix fairly well. Then I got 7.0.4. I cant start Compiz no matter how much I fiddle with the settings. I cant connect to the Internet. Help.
Which graphics chipset do you have?

I think that one of the 6.x series was the last one to have the gma500 acellerated driver, which was unfortunately dropped for newer X servers. Since Kernel 3.x, we now have the gma500_gfx framebuffer driver, which is too slow for compiz in mesa 3d software rendering.

Another reason could be that your card is blacklisted for automatic 3D detection (some NVidia and Radeon cards are, because Composite is not stable there), in which case you may try

knoppix 3d

in order to get back the old behaviour of enabling Composite, and letting compiz decide by itself whether or not your card is safe for 3d.

Regards
-Klaus