Currently as I am typing this, it seems I am experiencing some sort of bug with my Nvidia m8600 video card. I am running Vector Linux 6.0 Gold Standard on a Dell XPS M1530 laptop. Random blocky shapes obscure the screen occasionally and switching workspaces temporarily fixes the problem. I have Amarok, Firefox, Abiword, and a Terminal open at the moment if it makes a difference. I also have the proprietary Nvidia video card driver installed. Not the NV or standard.
I don't know where to report bugs by the way but in any case this is also a videocard problem as well, so I guess this is moderately relevent to this section.