Almost a month and a half ago, I noticed a vertical red line that ran from top to bottom on my laptop screen. Now I am seeing a vertical blue line in addition to the red vertical line. When I press down on the top of the screen the blue line disappears but comes back seconds later. They are not on the screen during start-up. They appear and stay visible once the desktop begins to load. I have a Compaq Presario C700 Generic PnP Monitor. Can you help me?! Is there some kind of diagnostic test I can do to resolve this problem? If you need more information please feel free to e-mail me.
Additional stuff: I notice that the lines sort of fade when they are on top of a white background. For example, while I'm writing this forum, I can see the red thin vertical line going through the blue and gray site navigation pane up top, but I can not see it inside of this text box (because the text box is white). Sounds weird I know.