No input signal on first boot..... :(

Sup, i decided to build my own computer, piecing everything together from Newegg... and so far everything turned out great. All components installed, everything hooked up correctly, etc. Anyways, i fire it up and everything spins, harddrive beeps and spins up, video card fan blows, case fans, CPU fans, etc.... everything fires.... but i get no signal to the monitor so i am blind. No beeps from the motherboard either :(

Can't be too specific on names b/c i get an error from GS but i hope the point gets across...

Any ideas? Time to return the motherboard as "dead"? This is really getting frustrating.

Specs:

- P5N-D ATX Intel Motherboard (SLI 775 socket)

- Core 2 Duo E8400 3.0GHz

- 4GB (2 x 2GB) DDR2 Dual Channel Memory

- 750W Power Supply

- 320GB internal (SATA)

- GeForce 8800GT 512MB

- DVD/CD drive

- 19" Widescreen LCD