I've just found this utility to Monitor the Temperature of your Mac: http://www.bresink.com/osx/TemperatureMonitor.html It's pretty complete, and the author has a good explanation on his site of what you can expect from your system in terms of temperature measurements: in short, for the Cube, only if you have an original Cube with a PowerPC 7400 processor (some Cubes have a 7410) will you be able to read the temperature. And this reading is far from accurate :-/ The cheap indoor/outdoor digital thermometer, with the probe on top of the cube vent is a better solution! -- François Menu frmen at wanadoo.fr