i have the winxppro os on my amd 2800 cpu with 2gig of memory and an ati wonder card. orb works ok with music that's already on the hard drive, but can not resolve the tv programming at all. the n800 is continually rebuffering. i tried the n800 version, then the regualar version, but neither worked an better than the other. orb's site says they need a far faster cpu.