Re: I know i've asked before but..
I had this problem with my flat screen FTF I got home from college booted it up, it crashed then I turned it on and off and I had the no signal error on the screen, I had to replace my flat screen with an old chucky dell monitor, maybe the same problem you had, I had my yesterday.
I'm not moaning too much this monitor gives better refresh rate..
(CPU)AMD64 X 4200+ Dual Core
(Memory) OCZ 3200 DDR 400 x2 512 Duel Channel
ASUS Motherboard A8N-VM 939
8500 GT Nvidia GeForce 512 PCI-E