Safari eating the CPU and making fans race

Hi, having read some good posts on this forum re fans being continually on I opened activity monitor and found that Safari was using 90% of the CPU, so I quit it and relaunched and now the fans are barely audible.
Just wondering why Safari was the culprit in this instance when so many posts pointed to erroneous print processes and widgets?
cheers
Simon

I encountered this before using Safari 3.0. In other message boards a lot of people have been complaining about it as well.
It seems that in my case the problem is triggered when I visit sites that have Flash content in them. In those cases, I already left the page that has the animated content but Safari maintained its high CPU usage.
After doing the update to 3.1.1, the problem was gone with my MacBook.

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