My computer is as follows: Vista x64 UE Q6600 (OC'd to 3.0gHz) GA-X38-DQ6 Corsair DDR2-800 1GB*4 8800GTX It's Prime95 stable at 25hours, OCCT stable 2hrs, Memtest 86+ stable >14hrs no errors. I play COD4 MP and UT3 on it for >4hours and no problems. I've done DivX video encoding overnight and no problems. For some reason when it's idle, I get a BSOD with a Driver_Power_State_Failure error similar to this: BCCode: 9f BCP1: 0000000000000003 BCP2: FFFFFA8007C51050 BCP3: FFFFFA8007C55060 BCP4: FFFFFA8005720010 OS Version: 6_0_6000 Service Pack: 0_0 Product: 256_1 I tried googling this to figure out a work around but I'm not having luck narrowing down the culprit. I have attached the Minidump files but I am not sure how to interpret them. I tried to use the advice in the stickies above without success. Does anyone know how I can decipher this error code and prevent the BSODs? Thanks in advance.