[P1] Safari Revs CPU to 90% and Keeps it there [Follow Up]

[Jack Rodgers]

Resetting the cache and manually deleting my history files seems to 
have cleared up the problem. Perhaps copying the user preferences and 
other items after my Panther upgrade and then moving the files from my 
15" tiBook to the 17" alBook created the problem.

So, if your fan begins running constantly, open the Activity Monitor in 
Panther and see if one of your applications is revving the cpu and then 
see if you can find out why.