Macbook screen problem

edited July 2012 in Game Support
Oops, this might be the more appropriate place to post this question.

I bought Tales of Monkey Island on a CD-ROM. I’m playing on a Macbook Pro, but there is something wrong with how the game displays on the screen. Every once in a while, it’ll turn into a weird mosaic pattern and I can barely see what’s happening in the game. How can I fix this?
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