My laptop worked great til a few weeks ago. It is a Toshiba 315 CDS.
The screen suddenly has lines that go from the top of the screen to half way down the screen. You can still see what is behind it but it is like looking through prison bars.
I hooked up an external monitor and no lines.
I replaced the screen with a screen out of a junk 315CDS and same thing happens.
Any ideas???