In Vista my CPU (e4500 @ 2.8Ghz and stock volts) idles between 28 and 32. In Ubuntu Intrepid it idles between 47 and 51. I am taking my readings using lm-sensors, and my power settings are "on demand" (tends to run at 1.2Ghz), but even when I set it to conservative or power saving settings it still runs this hot. Any ideas why? Cheers!