I recently upgraded to a Radeon 7870 (PowerColor version).  I plugged it in, and as I am browsing the internet or using Windows Explorer, I get these dancing pixels.  Along with that, when I play a game (I tried it with Deus Ex: Human Revolution and TF2) I get these weird flashes across my screen.  Now the games run perfectly fine, but they are unplayable with the flashing.  I have tried updating my drivers, to no success.  Any help on this subject would be much appreciated.

Windows 7- 64 Bit

AMD FX-4100 3.6 Ghz

8 Gigs Corsair XMS3 memory

Gigabyte GA-970A-DS3 Motherboard

800W Power Supply

Sounds like a faulty card. Try it in another computer.

CPU: AMD Phenom II X4 810 @ 3250MHz | RAM: Kingmax 2x2GB DDR2 800 @ 833MHz| MoBo: MSI K9A2 CF v1.0 (BIOS: 1.D)| GPU: Asus HD 6850 1024MB (DirectCu) @ 850/1100MHz | Display: Chili Green Vision L24FHD | PSU: PC Power & Cooling Silencer 750 Quad | OS: MS Windows 95 x64 Edition

CPU: Pentium 4 Northwood S478 @ 3200MHz | RAM: 1,5GB DDR 400| MoBo: Gigabyte GA-8S661FXMP-RZ | GPU: Abit Geforce Ti 4200 | Display: Dimarson 19" CRT | PSU: Noname 400W | OS: MS Windows XP Pro, Fedora 18

Yeah.  I called up Cyberpower, who I ordered it from, and they said the same thing.  They told me to RMA it.  Thanks!