Well, I received my replacement 7800GS OC AGP graphics card from BFG Tech today. To make a long story short, I'm still having major problems. My initial problem was that the first 7800 was not putting out ANY video. The tech requested that I have the card replaced. The card has been replaced but this new one is doing the exact same thing. The operating system will not load and I get a "NO SIGNAL" on the screen. After that the monitor just stands by. I've tried several things in my BIOS including restoring defaults but no luck. I have to say I'm getting a little frustrated with the whole thing. I don't really feel like working on my system anymore. If anyone can help that would be great. Thanks in advance.

SPECS:

AMD Athlon XP 3200+ (2.21Ghz)
2048MB PC3200 RAM
K7M NF18G Mainboard
6800GT OC (AGP) video card (as of right now)
520W PSU

You have a 520W PSU, but from what company? If the card has a power plug then connect it.

The PSU is an Aspire. It worked fine when I had a 6800GT OC installed. The 7800GS OC is the first unit down the line plugged into the PSU.

Aspire really isn't that good of a PSU company. How large is the +12V Rail?

Well, I know Aspire is now Apevia and all I know about the +12V rail is that it is a dual rail.

This is it here: http://www.newegg.com/Product/Product.aspx?Item=N82E16817148008

There are some reviews on that product, so I would bet that is the problem.