hello everyone I have just picked up a XFX RADEON HD 5870 to upgrade my video gaming capabilities (had 2 nvidia 8600gt's) because I heard good things about the GPU. I instaled it on my ASUS P5N-E SLI mobo and I got no picture. I installed it correctly and even updated my bios before installing and still no picture. the fan on the xfx runs and I even hear windows start up but no picture. I was sad. so i checked my power supply and It is a Crosair 750 so it is solid. the cables are fine I switched back to my 8600gt's and they work fine and its the same monitor and cables. has anyone come across this problem yet. the mobo is capable of what the card requires for pci-e so I dont know what it could be? help please?