Another update to Christian Antkow's .plan (courtesy of Webdog as the Blue Tracker keeps struggling with the server load) provides the latest information on the DNS problems that are plagueing some Quake III Arena test demo users:

Got about 50 e-mails over night with various insights into possible DNS resolution issues with authorize.quake3arena.com. I just made a few changes to the DNS records, Tim restarted the nameserver, and lets see if this doesn't get better in the next 24 hours or so.