Energizer Bunny - Going, Going, Going

Up until now I have experienced little problems with Second Life, On Saturday I started Freezing up, I can't move forward, Backward, Up, Down etc. Then when I do get to move I can't stop, I keep going and Going just like the energizer Bunny. If I try to build something Objects keep reverting back to the original sizes and places, and sometimes I have to watch while the object bounces back and forth like someone is playing ping pong with it, Or making taffy! I am in a New Sim with little action, Almost all of the sim is unoccupied and for sale. I have tried to clear the Second Life cache, and that didn't seem to make any difference. Does anyone know why I would suddenly be having these problems?

That sounds like Sim-side lag. Lagwalking and Primhopping are sure signs of server-side lag (as opposed to framerate-related client-side lag. See the sticky topic at the top of this forum by Nexus Nash for more information).

Try going to other locations. I don't know why it's happening on your particular Sim if it is as empty as you say (perhaps there are hidden lag-generating objects. Have the Sim's owner check for running scripts in the land.) but that is almost certainly the issue you are describing.