I'm not sure if this is a hardware or software problem. My notebook doesn't seem to do work as it should. E.g. I couldn't run 3D modeling program and as soon as I install it the computer slows down. And when running games like typing of the dead and chess master, the computer hangs (everytime). The computer has 2.2GHz. 256Mb RAM. and a capable graphic card. Eventhough it's running on full power with AC pluged in it's not doing enough work as my older PIII 450MHz computer.