I'm experiencing hesitation/skipping with the Logitech Performance MX mouse. It's not all the time, but it's enough that it's annoying. This isn't the problem where the mouse skips all over the screen, but it just stops moving the after a delay and moving the mouse around, it moves again. It's relatively slight, but it's enough that it's annoying to work with. I was using the same mouse with my mac pro on the same desk without any issues (using Snow Leopard). (Just made the move from the mac pro to a new 15" Macbook Pro with external display) The Logitech dongle is plugged into the macbook pro). Thoughts?