I have a very similar problem, same model, except I wouldn't say it's lines, it simply seems like what should be the black background of everything... is all red. Pixelated a bit, but not lines.
I called my local repair guy and he said it was the inverter board (same thing as Display Inverter?) and I was just getting ready to order the parts to try and fix it, but now reading this I am wondering.
Does anybody have any experience with this problem related to the inverter board/ display inverter?
Any help much appreciated.