I noticed on Apple's support forum that tons of people have the problem after updating the OS to 10.5.6, the USB ports on the keyboard no longer work. No matter what I plug into them, I get a Low Power notice. I called Apple and for some reason they are sending me a new k/b. I don't see how a software upgrade could damage a k/b, and there are a lot of people with the same problem. Surely Apple isn't gonna replace everyone's keyboard! Anyone else with a Mac and the slim aluminum k/b have this problem with the OS update?