Well I ordered some RAM off ebay. PC3200 512 X 2. One stick is fine, but with the other one I get this. This is the second one the guy sent me and I think he sent the exact same one back thinking I wouldn't notice. I tried a different slot on the board too - same thing. I tried having only one stick in there and it was fine, but when I swapped sticks into the same slot - boom. Grrr...