Okay, so I bought an HD 5850 from a guy the other day, and it arrived today. I put it in my Mobo, plugged in the power cable, and turned my pc on. It had a very annoying, high-pitched whine, but I continued. I opened my AMD VISION Control Center to try to turn the fans down, but I couldn't find anywhere in there to change anything except the graphics quality and cpu power. I opened MSI afterburner, and it still said that I was using the 7560D that came onboard, when I made sure the 5850 was plugged in. Also, I bought a VGA-DVI adapter to use on the 5850, but my monitor wouldn't turn on when I plugged it in, either. At this point, I want to punch a hole through my computer because everywhere I look, it says, "Update your drivers!!" How do I do that? I downloaded the Catalyst suite from AMD's site, and it's proving useless so far. If anyone could help me sort this out, it would be greatly appreciated. If I can't get it working within a couple days, I'll reverse charges and send it back to the dude I got it from.