I recently installed an ATI Radeon Toxic HD 5850 video card and Windows 7 is not recognizing it at all. All of the installers I downloaded from AMD (for the drivers) did not work. I received a message about incompatibility with them. The card is seated properly and connected to the power supply. Right now I'm only using the Standard VGA graphics adapter. Any help with this is greatly appreciated.
Windows 7 Home Premium 64-bit
AMD Phenom 9550 Quad-Core Processor (2.20 GHz)
Quick update: Upon further review, the card appears to be recognized, but as the "Standard VGA Graphics Adapter". I put the old video card back in, uninstalled all the drivers and everything NVIDIA-related, replaced the new ATI card, and when windows booted up it recognized the card as the "Standard VGA Graphics Adapter" (though my monitor was plugged into the card via HDMI).