Another thing, if that does not work, check to make sure all the connections are secure in the PCB (inside the base) as they can work out during shipping. I also noticed on mine (this was with the tracball so....) that in the bundle of excess wires the clear rubber boots on the quick connects had slipped up/off and that the quick connects were making contact making things act all wonky.
If all else fails contact support. I have used their support and it worked out well (for a PCB exchange) and it went smoothly.