I am running 9.2.2/10.2 on an iMac that boots into both systems. Right now I am using 9.2.2. My cursor seems to take on a mind of its own. Sometimes it just goes to the upper right corner of the screen. at times, it gets stuck (like when I am playing Snood) and it won't move unless I quit the application. Anyone have a clue for this bad behavior??????????? Jane By the way, what should Energy Saver be set to? sometimes this iMac doesn't want to wake up!