I just bought an iMac, and I've noticed that it seems a bit slower than my Powerbook. It SHOULD be a bit more maxed out than the powerbook, but for some reason it doesn't seem as quick. Also, I noticed in the activity moniter that the yellow "active ram" is a lot more than the active ram on my powerbook while running similar tasks...is there a reason for this? I wonder if the ram is installed correctly, but it reads 1.5GB on both machines (all things being equal, the iMac should be a little faster, no?). Should I call Apple about this? Or maybe try opening up the iMac again and re-inserting the ram chip? Any suggestions?