Ya chessmaster10000 needs lots of juice. I can't run it on a 800 Mhz labtop and on a 2.4Ghz it works fine but still takes a lot of power. I ran deep fritz 8 vs chessmaster10000 on 2 different labtops and fritz always comes out on top.
Fritz 8 on a 800Mhz vs chessmaster10000 on a 2.4 Ghz and fritz scores 3-1, thats saying something.