After installing Leopard, my CPU usage has been continually stuck at 100%. I'm using an iBook G4, and I did a clean install, using Migration Assistant to copy over files/settings.
The process that seems to be using the most CPU right now is "installdb", but others (including iCal) were doing the same earlier.
The process that seems to be using the most CPU right now is "installdb", but others (including iCal) were doing the same earlier.