Getting occasional BSODs, always when scrolling--cause?

I recently bought a Fujitsu ST5112 slate, and it's been crashing occasionally. I recently added a stick of RAM to the second slot, which had been empty, so it may be a bad RAM stick but I'm not sure. I tried reseating the RAM, cleaning the contacts and applying Deoxit contact conditioner, but none of that fixed the problem. The weird thing is, it only crashes while I'm scrolling on websites. I've had about 10 or so crashes, and it always happened while scrolling. I leave the computer idling for hours at a time and it never crashes while idling, so it's probably not a coincidence that it always crashes when I'm scrolling.

Any ideas of other things to try? I might try buying another RAM stick. Could it be the hard drive? I ran HDtune and it didn't show any bad sectors, but it's an old hard drive. I also ran Memtest for a couple passes and didn't get any errors, but I'm planning to run it overnight to see if that shows anything. What else could I try?

 

Try updating all your plugins and also disabling them (one by one).

Good luck.