Hi, I've just upgraded my motherboard, cpu and ram (soltek SL-75MRN-L, amd 2500+, and 2x512Mb 400 mHz pc3200 ddr ram). The problem I have is when I run anything graphics intesive i get a blue screen. graphics is onboard gforce4 mx on nvidea nforce2 mobo. Mostly hapens when viewing video (dvd, avi, divx, etc) but also on 'call of duty' (but not half-life). I can tell when it's going to blue screen because the screen gets what looks like interference (random horizontal lines about an inch long). The interference is not limited to the window playing the video ie. it appears all over the screen. ram is running at 166Mhz (double pumped to give 333?). any assistance will be greatly appreciated.