Alphamonkey is the main site admin, right? I'm not sure if he reads this forum, but I've stumbled across the following error.
Firefox has detected that the server is redirecting the request for this address in a way that will never complete.
The browser has stopped trying to retrieve the requested item. The site is redirecting the request in a way that will never complete.
* Have you disabled or blocked cookies required by this site?
* NOTE: If accepting the site's cookies does not resolve the problem, it is likely a server configuration issue and not your computer.
The comic in question is the one of 8-22-06. I didn't notice any other problems. The archive probably isn't at the top of your guys' maintenance duties manifest, but I guess it could be a small part of a larger issue?