Hi Bojote,I've had an intermittent problem with getting a blue spiral and then a CTD. I'm not surewhat causes the spiral but I'm guessing it is the GPU as I don't think it is CPU or cfgrelated. I'm using your 'Normal' tweaker cfg with the external limiter set at 30 and it crashed at 32 FPS.Strange thing is it happened twice at about the same spot over sparse AG Orbx Australian scenery. GPU-Z shows the highest first GPU temperate as 65C and the second as 59.5C. Real Temp shows the maximum temperatures as 68C, 74C, 63C and 64C.Can you suggest a test to confirm what is causing this CTD?I really need your help!Regards, JackSorry about the repeat question but I could not find your response message to reply.Hi Bojote,FSX crashed at about the same place in the Orbx scenery using a plain vanilla cfg.Bad video card?Regards, JackWindows 7 64 bit ULT | i7 920 OC'd 4.2 GHz | ASUS P6T Deluxe V2 | 6GB Corsair DDR3@1600EVGA GTX 480 | Thermalright Ultra 120 Extreme | 2x 300GB WD VelociRaptor | WD Ext 500GB HDCorsair Modular 850W PS | Samsung 275T 27" Monitor | Plextor 24x DVD/CD Writer