I am noticing weird behaviour with the CPU temperature reading from istats on my macbook 12 (1.3ghz). When unplugged the temp will read between 59 - 70 celsius with light use (although it feels very cool). The second you plug it in it immediately changes (drops to 34 celsius). To me this seems like the reading is inaccurate when running off the battery. Anyone have any thoughts on this behaviour. Thanks.