Black screen after windows update

Hi, when windows vista updated after I shut down my computer, there was no video signal going to the screen when I turned the computer back on. This happened last time windows updated, and my computer was unusable for 2 weeks. Then it just started working again.

I hear the post beeps (they are the same when the computer is working normally) when I turn the computer on. All the fans, for the case, cpu, and video card, spin. The hard drive light on the front panel flashes, and the power light stays on. Everything seems to be working except there is no video signal.

I have tried leaving the computer on for about 2 hours and unplug all the peripherals. I have took out my video card and tried using the onboard graphics. I have taken one stick of ram out ( I only have two.) Also, there is no dvd in my dvd burner.

It seems like alot of people have this problem. I have read their forums and none of the answers are working for me. It is werid because a windows update shouldn't affect the computer going into bios.

Vista 32-bit Home Premium OEM
ECS A780GM-A motherboard
AMD Athlon64 x2 4600 cpu
Sapphire ATI Radeon HD3650 video card
Corsair DDR2 2gb (CM2X2048-6400C5) memory sticks x2
Thermal Take 430watt psu
WD 400gb hdd
Samsung DVD/CD burner
CTL 220uw 22" screen


Any help is appreciated!