Ok, a little about the problem. I had to RMA my memory and they replaced my 4x1GB sticks with 2x2GB sticks. That I was happy about b/c of the possibility of fitting more RAM later. Unfortunately after a couple weeks I started having random app crashes in Vista. From what I've been able to tell, something is causing background services to crash. So of course I went into testing mode.
I booted it into memtest 86+ and within seconds it had over 3k errors. After making sure my BIOS was set to the right settings for my modules I tried again. Same thing happened. In my frantic google searches I read something about video card. I took out my Quadro FX and ran Memtest again. This time I only got 9 errors.
The biggest thing that confuses me about these memtest errors is that they all happen in a range of memory that I don't have. They are all between 4608mb and 4900mb. But I only have 4094 installed. Any ideas? Please help I'm practically going insane.