I have a system that i built myself. It has a Asus P5N-E SLI with a dual core processor. The system is about a year old and i wanted to update the video card from a Nvidia 7300 to a 8800 GTS. Before i installed the card i deleted the old drivers. I then installed the new card and powered up my computer. The computer boots with no errors other than i do not get a signal from my computer to the monitor. I then tried to put the old one back in and that one does not give a signal either. Is there any help for me or am i out of luck.