Something like that happened to me, but it was a lot more complicated. See, I turned my computer off, and it wouldn't turn back on. So I took it to Best Buy, where I got it. They fixed it and also put in a new Graphics Card (See my first topic). Then the screen thing wasn't working. I took it back, and they fixed it again. Then it was crazy. The display STILL wasn't working, so I plugged a thing in a different thing, and Voila!
The computer in mention is the computer I am using to type this.