Hi Matthew, Your CPU clock is not the only clock with problems: your mail's date is set at Jan 1th 2002. :-) I also underclock my system. I run an AMD1700 which I could run at 1,4 GHz at 1,1 GHz, only to keep the temperature lower, and thus the CPU-fan speed (and noise). If I set it at 1,4 GHz, I get freezes like you describe, but it is indeed very strange that in your case it only happens in Linux. Anyway, you might want to check the CPU temperature, maybe your fan is broken, or the heatsink it not making good contact? maarten
