Has anyone else noticed that 10.4.2 gives much more fan activity and heat production for them than previous versions of Tiger and Panther? I've been noticing my fans running a lot more than they ever used to. On the flipside, 10.4.2 is the first time Tiger has been really stable for me. Here are some details: - My power settings call for Automatic processor performance on wall plug and Reduced on battery. The issue primarily happens on wall plug. - I have tried reducing the number of widgets I have running, and also got rid of Dasher, which seems to provoke more mental activity on the part of widgets and make them consume more resources, somehow.... - I get the fan running in the following circumstance, alongside others, which surprises me in particular: Mail and Safari running minimized, Adium running open (and logged in, but no chat sessions), and iTunes playing a playlist of 128 AACs. I plugged the computer into the stereo via line out, and played a playlist, and I came back to the computer and noticed the fan was running. I don't believe the fan would have run under this circumstance in the past. - Overall, my fan time is low -- maybe <5-10% of active computer usage time. But it was <1% before -- I hardly ever used to get the fan running. Any similar observations? Any fixes? Thanks!