Interesting hack...
In this case the video is shown on the montor (projector, monster big TV, etc.) and sound system connected directly to the HTPC. It's an AMD 64 dual core, 2.2ghz, 2gb ram, 2 x 500g hd, 1 terabyte hd (on USB), Asus M2N mobo. Playing XVid and AC3 Using MPClassic runs about...