Do lines across an LCD screen indicate that it's time for it to be replaced?
I have a 5 year old thinkpad which has suddenly developed a horizontal line across the screen. The pixels on the line look 'slow' ie. they change colour only after a while and that too not consistently. The graphics look like they're pulled across the screen and spread where the line is. I ignored this for a while but the number of such lines have increased and I now have a 'band' about 0.25cm high obscuring part of my screen.