Having Trouble OC'ing with 71.89

[lithium726]

specs:

a64 3200+ @2.5ghz (1.65v)
MSI K8N Neo2
1GB TCCD (1.6v, 250mhz)
BFG GT that could do 395/1.06 witht eh last officials
Antec Neopower 480

stock runs fine, but when i try to OC at all, the card gives me long pauses in game (even at like, 375/1.01, and that is as low as i tried) and stock is 370/1.00

any ideas? i ran driver cleaner and everything, these drivers were giving me any more problems prior to that...

could it be my power supply? im thinking no cuase 5mhz on the core and 10mhz on the memory should be nothing at all...

 

[lithium726]

well,i fixed it - a combination of me not turning off fastwrites when i had a failed overclock and had to clear the CMOS and that "ATI/NV speedup" option being on (its one of the hidden BIOS features)

so it works now