Re: nVidia Riva TNT2 pro and Compiz?
First compiz requires the GLX extension 'GLX_EXT_texture_from_pixmap' which isn't supported on the TNT drivers. Even if it was supported compiz requires a fast videocard and PC to run well. If you want this you need to upgrade. As you are still using a p3 1.0GHz I would upgrade as it isn't that expensive (even if the prices of new hardware are high, even a second hand p4 or a64 would be a nice boost already)