Bad DIMM or RAM

[Zerohero2]

I have a seriously disturbing problem with my PC. I have an M7VIT Pro Mobo, an AMD Athlon XP 1800+ Barton Core, a Geforce MX 440, a Realtek PCI Network card, and 2X 512 PNY Optima PC3200 RAM sticks. See I recently bought an extra stick of 512MB Ram, and now after about 72 Hours of online time and shutdown time, I get an out of the blue BSOD about Win32K.sys and the code is like 0x0000050 or something like that and it won't go any farther. I've tried this before with a 256MB stick of Kingston PC2100 and got the samething. I do have one "slightly bent capacitor on the mobo, but it works fine with one stick of RAM in it. I've tried all different kinds of combinations of the RAM and no luck, I'm thinking it's a bad Mobo or some kind of rootkit Spyware has found itself in my computer and that's one of the side effects. I'm really confused, I don't think it's the stick I just bought since it does this with different sticks in it. This is my figurative image of my PC and it's attitude.