I got a dell laptop about 6 months ago. It worked fine, until about 2 weeks ago, upon turnon it showed flickering white lines jump across the screen. It causes the image to freeze and slowly fade to white with a few green and red pixels. How do a go about fixing this?
Before calling for warranty support, attach an external monitor - if the external image mirrors the internal, the video chip is bad and the mainboard needs replacement. If the external image is OK, then the LCD panel is what needs to be replaced.