New video card not working (ASUS 4850)

Hello,

To make a long story short the fan in my old ASUS 4830 was starting to go, I RMAd it and ASUS offered an 4850 as a replacement. Sound good so far, but the new card came in yesterday I can not get it to work.

I have done the following:

-uninstalled the drivers for my onboard Radeon Xpress (which I was using while I had no graphics card). Used driver cleaner to clean out the left overs.

-Made sure that Primary Display adapter was set to PCIE in the BIOS.

-Installed new card, made sure the 6-pin power connector was hooked up.

-Turned on computer, the card fan spins and the D1602 LED (EXT 12V fault) flashes briefly. I know the card is supposed to do a POST when the system boots up and the lights are supposed to flash but it should be noted that only one of the two LEDs turn on.

-Windows appears to start but I get no video

-I have tried re-seating the card several times, tried both the DVI inputs on the card. No go.

-Tried it on my brothers system, still wouldn't work.

I'm 90% sure I got a bad card and I'm trying to contact ASUS about getting a replacement for my replacement. But I was hopping somebody here would have some suggestions just in case I overlooking something simple.

Relevant System Specs:

ASUS M2-VM Motherboard
AMD 64 x2 5600+
Thermaltake TR2-550W Power Supply
WinXP 32-bit

Thank you in advance