Your computer screen can switch from horizontal to vertical due to a variety of reasons, including installing a new program, using a presentation that makes changes ...

Some users are experiencing an ongoing display issue, primarily affecting Penryn-based MacBook Pros. When the problem manifest, alternating light and dark vertical bands appear on the screen when the ...

Vertical lines on your computer screen could mean anything from outdated graphics drivers to a faulty monitor or cable. But before you pick out a new monitor, take a look at these solutions—you might ...