Hi, I have an AMD Athlon64 X2 machine running SuSE 10 (x86_64) on an Nvidia Nforce4 Ultra motherboard, and have noticed that the system clock has become unstable (it runs too fast). Not sure when it occurred, but I have been getting a lot of error messages like this in dmesg: warning: many lost ticks. Your time source seems to be instable or some driver is hogging interupts rip acpi_processor_idle+0x12f/0x37f [processor] Is there some parameter I should be passing to the kernel to stop it correcting for lost ticks? Also, is there some way to track whether the clock is really gaining seconds - other than by just leaving it, and watching the clock? :) Best wishes, Jon. -- Jonathan Brooks (Ph.D.) Research Assistant. PaIN Group, Department of Human Anatomy & Genetics, University of Oxford, South Parks Road, Oxford, OX1 3QX tel: +44(0)1865-282654 fax: +44(0)1865-282656 web: http://www.fmrib.ox.ac.uk/~jon