Hi
If it is a driver problem your computer should boot in Safe Mode, since it doesn't load the drivers for video, but stays with the basic drivers.
I'm assuming that you have video right up until it stops.
it sounds like the computer crashes at the point where you normally see the screen blink, and the video card takes over from the motherboard.
But since you say it won't boot in Safe Mode
As Vsuk said, It seems like it may be the video card itself that isn't working.
When you say that you got your video card fixed do you mean that you installed a new one?
Maybe it is just faulty, it happens.
Mike