Windows 7: Greenish blueish colored screen with vertical lines

My mom has a Compaq laptop. It has Windows 7. Yesterday, the screen randomly turned a blue-ish green color. The Google Chrome new tab page is where she first noticed. It's pretty much wherever there should be white, there's that funny color. When I restart it, the white Compaq "Q" logo is green instead of white. The "Starting Windows" text is green and the light inside of the Windows logo is green also. Could this be a screen error or a graphics card error?

This sounds like either a connection issue or something wrong with the monitor. Inside the laptop the monitor has several connections that could cause issues like this. Try to tap the back of the monitor very lightly in attempt to "bump" it back into position.