Try resetting the monitor to defaults if possible. If you still have the greenish yellow hue then at that point, try another known working monitor on the computer, if the hue goes away then you know the original monitor is bad, if you still have the greenish yellow hue then you know the video card is bad.
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Try resetting the monitor to defaults if possible. If you still have the greenish yellow hue then at that point, try another known working monitor on the computer, if the hue goes away then you know the original monitor is bad, if you still have the greenish yellow hue then you know the video card is bad.