I've been having problems with my Athlon64 machine (Targa with Asus motherboard) with recent kernels. I wonder if anyone else has found this? Basically, the machine hangs if left for a few minutes. I suspect it is something to do with ACPI. I've tried both the "official" Fedora kernels, and one (2.6.11.8) which I compiled with Athlon64 chosen as the processor. I had difficulty compiling this with the official kernel, as I got several segmentation violations. Some at least of the violations occured during C++ compilation. The machine seems to work perfectly under Windows XP, so I assume the problem is something to do with Linux rather than the hardware. I know there are several things I could do, turn off ACPI, write down the oops information, etc. But I just wondered if other people have had the same problem? As far as I recall, there were no problems with kernels prior to 2.6.10 , but that could be wrong, as the machine is mainly used by my grand-daughter for Sims-2 under Windows-XP. -- Timothy Murphy e-mail (<80k only): tim /at/ birdsnest.maths.tcd.ie tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland