Vpu recovery radeon 9550 help

[trigrodge]

hi all
i have recently upgraded my computer with a new mobo cpu and hard drive
i re installed my radeon 9550 and installed the drivers from the disc
but when i load fs2004 or pkr after about 10 mins it hangs and crashes to a black screen. then i get a message saying the vpu recovered because it wasnt responding to driver commands the crashes happen more frequently each time i try to reload application

xp sp2
amd athlon 3600 200hz
2gig ddr ram
biostar mobo
radeon 9550 graphics card

thanks in advance
leigh

 

[trigrodge]

ps i am using the same power unit from my old computer and had no problems
it has no fan on it the modo is a kv8..800 or something the card is 256 x8 agp
i have the latest drivers