A new beta 4.1 of ZPM for Quake III Arena is now available, updating the zero[ping]mode modification that offers enhanced client-side prediction for the weapons in Quake III Arena. New in beta 4 is the addition of multi-arena and Rocket Arena game mode support, and since the site has basically been down since that release at the start of the weekend, we can include the follow-up beta 4.1 release in this report, which addresses a few bugs that were discovered in beta 4.