I just did a clean install of my fall 2006 Core 2 Duo MBP, using 10.5. It's still very slow, and more importantly (it seems), the processor is almost always mostly idle. It seems little wonder that everything is so slow. There's no way I would have accepted this out of the box in 2007, when I got it. Is there anything I can change or do that would speed things up? I've only got 2 GB of RAM, but it definitely wasn't this slow in the beginning, and it should be pretty much the way it was then.