The image is a different color

The image is a different color: 

Inspect the pins on each end of the VGA cable. If a pin is bent, try to bend it back. Or replace the VGA cable.

If the color red looks black…

Try a different VGA cable. The VGA cable probably needs to be replaced.

If one of the outputs is purple…

The input setting may be set to component instead of RGB.
Press the Menu button and choose the Advanced tab. Then set the color adjustment to RGB.

If the image is pink, multicolored, striped, etc…

Press the Menu button and adjust settings:

• Choose the Signal menu. Adjust the Sync and Tracking settings.
• Choose the Image menu. Adjust the settings.
• Reset all settings to factory default.