My laptop is only a year old, but recently I have been experiencing some very wierd video images after it's been on for a while. One day when it started, I got so ticked off that I hit it -- and it stopped. Can anyone put me on the right path to repairing it. I'm pretty good at taking stuff apart, so I thought I'd try. The screen gets horizontal lines in it that lighten to white. You can't see anything on the monitor while this is happening.