After I had a technician replace my computer's hard drive and cd burner, I started my computer up and everything on the screen was tinted yellow. After messing around with the cords to my monitor and the inside of my computer in an attempt to fix it, the screen went from a yellow tint to a green tint. It's like this for the text and logo on start up, for games, videos, my desktop..almost everything is tinted green. Since this happened right after the technician worked on my computer, I doubt the monitor is dying. It hurts my eyes and makes my computer unplayable. What can I do to fix it?