Not much information to go on. This could be a heat problem. Try downloading and playing your movie with VLC instead of using Quicktime. It's a better player and give you more control. Here's where to get the PowerPC version: http://www.videolan.org/vlc/download-macosx.html
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Not much information to go on. This could be a heat problem. I would clean the fans first then replace the thermal paste if the problem persists. Try downloading and playing your movie with VLC instead of using Quicktime. It's a better player and gives you more control. Here's where to get the PowerPC version: http://www.videolan.org/vlc/download-macosx.html
Not much information to go on. This could be a heat problem. Try downloading and playing your movie with VLC instead of using Quicktime. It's a better player and give you more control. Here's where to get the PowerPC version: http://www.videolan.org/vlc/download-macosx.html