DMA Function

Problem getting a game to load. Rockstar, Wildmetal. Its an older game but, its fun.

I can get it to run really well if I reinstall it every time I boot up. Runs great, no hesitations and I can play
all night if I wish. As soon as I shut down or reboot I have to reinstall the game again to play.

It starts to load and this is the error I get; “DMA video function was called without DLL being loaded.”

Specs are: Asrock 775 dualvsta
Pentium 4 3.4 G
Nvidia 8600GT
1 G memory Corsair
CD-DVD
Creative 7 speaker sound
Feedback MS joy stick
Nothing overclocked right now.
OS Win 7 64 bit

Thanks for any help I may get