Installed Leopard last night on a 1.33Ghz iBook with 1.5Gb of RAM. Installation went smoothly, including the update to 10.5.2 and all of my settings were migrated from a clone on a FW drive. However, checking activity monitor, I'm getting an almost constant state of 100% CPU usage, even with the bare minimum of applications running. The system is responsive and everything and I knew Leopard was going to be a bit more resource intensive, but I don't think this is normal. What's going on here?