I have a problem with thisgame . I have a P4 2.8ghz that works on a motherboard asus p4p800 with this video card and 1 gb RAM.(catalist 4.1 but I tried all kind of drviers

Tha game sometimes starts in "slow motion" and sometimes in the right way. Besides , during the nba live 2004 menu i can't switch on windows because when i come backinto the game it goes in slow motion. I use this game especially to play online so for me is really important to switch on winxp for example to write my opponet ip

I had another system before and I didn't have this prob....
Thanks for your help...

Ale