This shouldn't change anything, but try going to IFI's website and
downloading the default code and master firmware. That way you should be able to rule out any software problems. But, like I said, it shouldn't change anything. As far as i know, the dashboard port is connected in hardware to the Tx/Rx pins that send data to/from the robot (changing the jumper changes which one you are connected to).Your OI should be the only thing in the loop for those values.
However... were you looking at the Dashboard screen with data from the OI or data from the RC? Make sure you're looking at the page that list "Port 1:" and so on in a grid.
-q