Monolith's Jason Hall has sent word to Bluesnews.com that their going release a new 1.0.9.2 patch for the just released Aliens vs Predator 2 multiplayer demo, to address a problem where, at times, the in-game server finder interface might crash when it is faced with a large number of available servers. He also suggests that in the meantime, try playing it through GameSpy Arcade or through the LAN. It's being tested right now, and should be released extremely soon...
AvP2 Demo Patch Update
AvP2 Demo Patch Update