hello: My school uses Macintosh computers ( :rolleyes: ) and one of my classroom computers has a strange monitor problem. When it stays on for too long, the screen starts to do strange things, like start to fuzz up. (Like on a T.V. screen when it doesnt have a signal.) I thought at first that the powersupply fan was jammed, causing overheating. However, a school tech replaced it and the problem persisted. So, is the monitor fried? or could it be the graphics card? I really dont know the specs, but I can tell you it is a iMac G3, and that it has 64 MB RAM. Thanks for replies, my school would appreciate it!