CoreDuo 2Ghz here... I was just reading a website when I noticed that CoreDuoTemp reported that my CPU was rocketing up towards 75C with 50% of my processors capacity at 2Ghz. The fans kicked in full spin and then in the menu bar at the top of the screen, Spotlight, time/date, battery level and wireless icons disappeared. Now the system is back at 50C with all other things seemingly at nominal. Any ideas what this was? I checked Force Quit Applications to see if anything had crashed but all my apps. were functioning correctly.