We continue to report on an issue where some MacBooks' screens appear distorted during startup, characterized by a series of vertical, multi-colored lines. Usually the startup process freezes at this ...

Grid lines add horizontal and/or vertical lines to your graph that aid in measuring graph values. By default, these grid lines use the color assigned to the "automatic" selection feature, which is ...

I got a PB 12 for SUPER cheap. There are a couple problems, but none of them are major. The only one I would rate as major is that there are coloured vertical lines running down the screen. How do I ...