Here's the deal - I put a somewhat used 256 MB chip of RAM into my computer. I'm pretty damn sure it's good; the computer it was in was working fine, and I ran metest86+ (which comes with Ubuntu) for an hour; it did ~4 passes and reported no problems.
However, this is after I discovered that Windows apparently enjoys randomly bluescreening now, soon after the login screen pops up. (Sometimes it waits 'til I log in, sometimes not.)
In order to install the memory, I had to disconnect the GF6600GT, hard drive, and CD-rom. I'm pretty sure it's seated correctly; I made sure both of the little thingamabobs clicked.
After shutting it down and double-checking my work, I checked and found that I'd forgotten to hook up the GF6600GT's auxiliary power connector. (The odd thing is that I'd done the same thing before

but that time, Windows was able to boot up and run fine, although it did give me an error.)
After plugging it back in, the same problem has continued to happen, although Ubuntu worked afterwords (before it was unable to start the X server).
Ubuntu works now, but Windows has continued to bluescreen, although the error seems to vary. I'm going to keep on trying to troubleshoot it by toying with BIOS settings (Safe mode also seems to work fine). Any help would be appreciated though; hopefully I don't have to buy a new video card or repeat the process to get the memory out.
