Problem with 8800 GT

I've searched a bit on the forums looking at posts related to this subject. Found a couple, but still don't have a solid answer for my question.

I recently upgraded to 8800 GTS. Had it for a day and realized my power supply just couldn't handle it. So I took it back, and used that same cash to purchase an 8800 GT card, as well as a new power supply (600w).

Here's the problem. I installed the new 8800 GT, and the computer boots up fine... but nothing is showing up on the monitor. It's like its not even picking up a signal from the card. Everything is plugged in right. The power is working. And it's not the card, because this is the second 8800 GT card I've tried.

I use an ABit IP-95 v1.0 mobo. I've read that it does AND does not support the 2.0 PCIe. I mean... how could the 8800 GTS work, and not the 8800 GT? Does the BIOS need to be updated? I have no idea what to do. Any suggestions would be AMAZING. Thanks!

Here's my power supply - Cooler Master extreme Power Duo 600w. The guy at the store said he used the same power supply and ran with two of my graphics cards.

As far as I can tell, the monitor is definitely plugged in. I have to use a DVI adapter to plug in, but I've tried it with both the new adapter that came with the card, as well as the old adapter I was using before. Neither one works.

As far as the cord goes... I did all that. Still nothing. I mean, it works just fine with my 7300 gt and with that 8800 GTS I had for a day.... it just won't work for this new 8800 gt. I'm still stumped as to what to do. I'm either gonna have to get a whole new mobo that'll definitely work with PCIe 2.0, or save a bit more and go back for that 8800 GTS. Which, while I'm on the subject. Now that I have this new power supply and can support that 8800gts... is it worth the extra bit of cash?

Thank you for the response.

Lancypoo - which 8800GTS do you have. The old 320/640 version or the newer 512? If it was the old 320/640 GTS that you switched from, you may have some leftover parts of the driver for it screwing up the 512k GTS which uses a different graphics chip. Just a shot in the dark, but Nvidia created a bunch of confusion using the same "8800GTS" designation for the old cards and the new cards and that may have bit you.