Originally Posted by Vint
I'm one of Mazzle's original Beta testers, and I've been running it on my various Macs without any kind of video glitching.. sounds like either your video card is overheating, or you may have a bad RAM chip, and its not getting "used" until one of the MazzleUI addons tries to write to it.. time to break out the AHT disc and run it a few times..
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You were right. Took my iMac into the local store. They had a hard time diagnosing the problem as either video card overheating or logic board. They were nice enough to go the more complete route and replaced the whole logic board. I say nice because I had only 20 days left on my 1 year warranty. Cost to me $0. Cost if I had not had warranty in effect $700+. Ouch. Working on getting the extended warranty to 3 years now. :-) Fleabay for approx $100.