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I don't use Fusion and run windows on the Air all the time. I only do it once in a while, when I need to run a specific program that only works with windows. It is only once in a great while, for a couple hours, and it is fine.

Like I said, I am very happy with my Air, it is great and runs well, EVEN with Fusion and Java. My only issue is when using Flash and the speakers on the cinema display, and this is what this post was about. Did you try to do it on yours (listen to a streaming flash radio for 10-15 minutes)? Do you have the same issue?
 
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