Having downloaded and installed the most current iso, all of the kernels are now 2.6.18 versions (very good from security perspective)! What is the bigmem kernel used for as opposed to the i686 kernel? Also, I think I found me a better firewall program available in both debian and slackware and maybe elsewhere too. It's more involved getting set up than lockkit and can be adjusted using speakup. The package is called arno-iptables-firewall.