I have an eMachine T6420 two weeks out of warranty. The monitor will be normal and then suddenly change to a blueish hue. No problems with any software or pictures, just a blue hue. Sometimes this happens at startup and some times it will change after the computer has been on for a while. Sometimes the problem is intermittent, changing between normal and the blue hue. My monitor is an AGM and the monitor is not the problem as I have hooked another monitor up to the T6420 and the problem still exists. I would appreciate any suggestions on anything to try or what the problem might be, or it is something that I can replace?.......