Well to start with a few months back my computer started playing up by well basically shutting off both of my screens and displaying odd and random colours and lines accompanied by a high pitch sound. Since then my computer stopped posting so I switched the MB, RAM and CPU. I left the graphics card the same which was an X850 Pro. Since then this problem keeps occurring and I can not even load up games. I have just replaced my graphics card with an X1950 Pro and the problem still occurs. My old spec:- Asus A8V Deluxe AMD Athlon 64bit 3200+ Maxtor SATA 250GB HDD ATI Radeon X850 Pro SB Audigy 2 ZS 1024 DDR RAM My spec:- Gigabyte AM2 Socket AMD Athlon X2 4600 SB Audigy 2 ZS Maxtor SATA 250GB HDD ATI Radeon X1950 Pro 1024 DDR 2 RAM Also when running the computer with my on board graphics driver I do not ever receive any problems. Sorry I was not more help with the system specs if need be I can do some digging around to find them all.