How can I fix this? I tried running 'apt-get update' again but got the same error:
W: GPG error: http://debian.mirrors.pair.com squeeze Release: The following signatures were invalid: KEYEXPIRED 1246455239 W: You may want to run apt-get update to correct these problems Zach -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org