I recently bought an nvidia 7600gs to replace my 5500, for my Dell dimension 4600. The manufacturer was Asus. I uninstalled previous drivers, installed the card, then reinstalled the new drivers. I know that the dimension PSU does not have enough power output to power the card, so I purchased a 350W power supply as well. When I turned on my comp., the lights and fans, system, etc. powered up, but the moniter was black. I am pretty sure Windows loaded as well. I tried changing the BIOS to run on the internal card, but it would not work, so I concluded that my comp. is detecting the card, but it is not working. I have verified that the card is good on other setups, and I did the installation by textbook specs. Anyone know anything about this issue, or have any suggestions?