New Build, but having problems

Hi, I was wondering you guys could help me with my problem.

I recently bought new parts at Fry's:
MSI P7N SLi Motherboard
BFG 9800 GTX
BFG 650W PSU
2GB (2 x 1GB) Patriot DDR2 PC-6400 Memory

I did not buy a new HDD because I already had one.

When I booted the computer for the first time, I saw a brief screen on my monitor saying something about Dual Channel. That's it, after that, no more monitor screen shows. I tested my monitor on another computer and it works.

I know that it might be my old video drivers from my last card (7800 GS), but if I need to uninstall the driver, I would have to take apart my build and rebuild my old build to even see the monitor. I can't go into the BIOS because I can't see anything on my monitor plus my motherboard is new, so I would have to install the drivers for that too.

Right now, I have checked everything. CPU, RAM, HDD, Disk Driver, VGA. Everything is working, or at least running.

Also, there is no beep in the beginning. And I would like to rule out the possibility of a hardware error as much as possible.

Any suggestions?

Thanks in advanced,
Hac

You will probably have to do a repair install of windows because(presumably) the motherboard changed.

First, though, see if you can get into the bios. F2 or delete key or whatever your mobo requires.
Try to run memtest86+ to verify that the ram and basic functions work.

Also, I would like to add/emphasize that there are no beeps when the system boots up. I have checked all the connections many times and I'm certain that they're not the problem. Could it be a defective motherboard?