Use a sit-on-moving-prim-teleporter to get into a skybox. If the prim unsites the traver slightly inside the floor havok1 will push them up though the floor. Havok4 will push them down though the floor. The same happens if the agent arrives inside the teleporters landing pad. they are pushed back down though the pad and then back down through the floor. While this seem minor it will create serious issues for all those who already have rezzed teleporters with landing pads. Agents should be pushed UP through objects they are colliding with so they do not fall through floors. An example with the problem can be found at the below link. Only a linden in god mode will be able to avoid the security device at this location. secondlife:///app/teleport/Captains%20Isles%202/73/83/733