Purchased the card 2 months ago, and when I play games sometimes the screen gets all jumpy and just wierd....then i started noticing sometimes on boot(even in bios) there is little white dots all lined up in perfect order...they often appear on desktop too. I ran video card stability tests and tests are saying artifacts were found...is the card dying? How does warranty work on these things, do I mail it in? I registered it when I purchased it. Thanks in advance.