All this talk about CPU heat. On many PCs, the BIOS ACPI function not only allows software to display the CPU and motherboard temperatures and fan speeds, but also provides user-configurable temperature thresholds where the fans will switch from normal speed to high speed, and possibly produce an alert and/or shutdown when the temps get too high. Go through your BIOS setup menus and see if your computer has these features, and set them to sane values. I run gkrellm and lm_sensors on two SuSE 9.1 machines (Intel P4 1.6GHz and an Intel Celeron 2.8GHz), and it is amusing to see the CPU temps rise as much as 15-20 deg C when a couple of very CPU intensive apps run, and as soon as they are done, the temps drop right back down. -Ti -- Ti Kan http://www.amb.org/ti Vorsprung durch Technik