When connected to an external display with VGA, colors are fine, text is easy to read. Videos look good. When connected through an HDMI cable to the same display, colors look almost flat and washed out, and text is more difficult to read. It almost looks as its too sharp or something, anyway to tone it down and make it look better? Videos look as if someone changed the setting for Windows to use 16bit colors... What can cause this drastic difference?