I have had my Logitech G700 for several months now with no problem at all however I have kept the receiver radio dongle in the front USB hub of my system. Today I was tinkering and decided to try moving the dongle to one of the back hubs. That is when i noticed the mouse movement being choppy. When I moved it back to the front the problem stopped. I am trying to troubleshoot the problem and I fear it is the radio strength although I am not sure why the extra foot would matter that much. Has anyone come across this sort of problem and figured out a solution?