> Any idea what might be the cause? No. I looked at two core dumps briefly. In the first, it looked like the PIC register value was corrupt causing a transfer to page 0. In the second, there wasn't any backtrace info (both pc and rp were 0). Unfortunately, this doesn't say much. It would be fantastic if you could narrow this down. Dave -- J. David Anglin dave.anglin@nrc-cnrc.gc.ca National Research Council of Canada (613) 990-0752 (FAX: 952-6602)