The promised Team Fortress 2 beta went live overnight on Steam, presumably before
midnight Pacific time to fulfill the promised September 17 release. The beta is
open to those who have pre-purchased the Orange Box Half-Life 2 bundle.
Holy fucking shit, thanks UA. I've been banging my head on this all night and have already re-downloaded the game but had no luck. It's finally coming up again after adding those flags. Hopefully it stays running now so I can actually try the game. Thanks!