I have a CentOS 5.4 64 bit server running on a supermicro motherboard. It kernel paniced last night. http://www.freeimagehosting.net/image.php?c51cb1be89.jpg Any ideas? Its running the latest version of Squid available with yum. Memory issue? Would adding: kernel.panic = 10 to: /etc/sysctl.conf Have caused it to reboot after 10 seconds instead of just sitting there? Matt