Monitor

If the resolution was recently changed it is possible for the monitor to not auto adjust or shift to the correct size. If this occurs, the resolution can be changed back to the original setting [...]

Verify that the monitor is properly connected in the back of the monitor as well as to the back of the computer. If the monitor appears to be connected properly, verify that a cable is not loose [...]

Make sure the monitor is on. If no power light (green or orange light) is seen on the monitor display try pressing the power button until it comes on. If your computer monitor was on and you [...]