I have a powerbook G4 867mhz running Tiger. I downloaded the lastest iStat Pro from the widget store and the HD temps have steadily increased in the last month. In the past, my PB ran as hot a 102º but lately iStat has been telling me it is running sometimes as hot as 117º. Should I be worried? Is this iStat update reliable for a Powerbook and made more for the MacBooks? Thanks for any help.