I've been experiencing problems for a week now in that sometimes the colours on my desktop picture aren't right, I also get clicking noise on monitor when starting up computer, blank screen and green light keeps going on and off until I've pressed button a few times when it seems to right itself and screen comes on. Today my desktop icons had been rearranged, the icon and print size has suddenly decreased, and everything on the screen has moved right over to the left. I really don't know whether it's the monitor or computer itself and would appreciate some advice. Thanks.