I've got an HP zd7000 laptop and I've been having a hell of a lot of screen trouble with it.
Right now, my screen only shows a basic white background with a bunch of colored lines on it (see attached picture). The few times I can get it to work, it cuts out anytime I run something graphics-heavy, like a game. It works perfectly fine on an external monitor.
So my question is this: is this an LCD problem or a graphics card problem? It's not the ribbon cable as far as I can tell, as I've got two and the same problem happens with both. Hopefully it's just in need of a screen replacement. Any help is apprecited.