First, some of you may remember that I posted about my drag and drop stopping working. Even after upgrading to a new 20" iMac, I still had the problem. I googled it and found some blame being placed on Quicksilver. I uninstalled Quicksilver and it hasn't happened since. So, if any of you have that problem, you might want to look to Quicksilver as the culprit (not saying it's definite, but it sure seems to have been the problem for me). Second, I changed out the RAM a couple of days ago, upgrading from 2 512's to 2 1GB chips...wow, was that EASY! Thank you apple for making that such a simple task!