After experimenting with all the options, I've discovered that the segfault is related to the "-sw 120,80" option. I was able to work around the segfault by changing it to "-sw 120,80".
My terminal font in the new squeeze installation seems to be bigger, which means I have fewer characters. It should also be noted that I run multitail within a GNU Screen session. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org