Jack Rodgers wrote: > Open CPU Monitor and select Display Expanded Window so you can see the > activity flow. Now as you switch among windows, do work, etc. you can > see how your battery is being drained and when the biggest drains > occur. As you open and close applications you can see how they affect > the battery drain. > > It would be interesting to see how earlier versions of X compare with > 10.2.8. 10.2.8 gave me a noticable reduction in idle cpu usage, meaning that while doing nothing, less of the cou is being used than before. When on battery this adds up and gives me at least an extra half hour over before. So 10.2.8 compares very nicely to earlier version of X. --Michael.