So, I took my computer to my friend's house to play on his 42'' t.v. I came back home to set my computer back up. Everything went fine. On my monitor, I can see white lines going down the screen. The text is fine for a few words, gets extremely light and this repeats. It's like someone smudged vertical lines on my computer.
I would try opening the case and pull the graphics card out, clean off any dust you see on it and then put it back in. I have seen cards come loose when you move them around and sometimes this can fix the problem.
I'd check how the display is on an alternate video card. If you have another computer, or area with spare parts, try it out. Simple task such as taking an old PCI video card and putting it in will give you an idea of where the issue is.