I recently had a problem with my monitor showing what looked like feedback or a frequency thing. Kinda like what you see on your tv after a vacuum or blender is being used. I took it to the Genius Bar and what they did is reset the power, with the little button under the RAM. I forgot the name of it but it's the little round rubber button hidden under and insidee the G5. Wondering if anyone has dealt with this before. The monitor problem came back after being OK for a while, maybe a month. Wondering what could be the problem causing this. Thanks for any help.