i keep getting a Blue Screen everytime I try to switch user. Up until 2 weeks ago, I didn't have this problem. Then I moved into my college dorm and this problem started happening. Blue Screen showed... STOP: 0x00000050 ....... ati2dvag.dll ....... PAGE_FAULT_IN_NONPAGED_AREA all drivers are up to date. my ATI graphics card has been discontinued so I can't get any more updated drivers. what I have is what I have to work with... and up until I moved into my dorm, I didn't have this problem. So it shouldn't be a driver issue. any ideas???