Hey, remember me? I'm back with no signal! *dun dun dun dun* *dramatic music*

I rebuilt my computer... Heres what I've changed:

New Motherboard: Asus P5N-E Sli
New Video Card: e-GeForce 8600GT
New Processor: Intel Core 2 Duo E6550
New Ram: 1 GB DDR2 Ram (1 chip, but I'll probably get another gig).

Problem is simple: I connect everything, everything should work fine, but - no signal on the monitor. But I think this is solvable...right? Please I need help. Badly.

i'm just gonna trough this crazy question out there, so here goes;

you have checked that the monitor works right?

i mean you've practically rebuilt your pc!!!

hi my monitor shows no signal . i do not know whats wrong with it.please any help me!!