Problem description:

About half an hour into the game, the game will actually lock up. Not in a sense that it crashes, nor is there a runtime error. Players cannot move, speak or use verbs. They are still visually logged into the game, although the game in a sense /freezes/. I've been able to use staff verbs such as announce with no affect. Also, if a player logs out, they will remain in the game, so the Logout() proc is not being called upon. I've checked for infinite loops, such as a rogue proc, or the move proc gone wrong, but they seem to be operating well. I'm not sure what could be causing this.