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John V

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About John V

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  1. I recently purchased a iMac 20" Intel Core Duo. I'm having a problem with the screen automatically dimming every 3 minutes. I do not have a screen saver enabled and under Energy Saver options I have it set for the screen to go to sleep/blank every 15 minutes. When I'm watching a movie in Frontrow the screen does NOT automatically dim every 3 minutes. However, when I'm watching a movie in Quicktime in non full screen mode the backlighting will dim. Upon moving the mouse the screen brightness will be restored to normal. This happens with all applications except frontrow. Is this normal? Please help.....