Delay issue with mighty mouse and macbook pro. help?

Connected but delayed in movement. I am connected to an HD tv via HDMI and only a delay issue on the tv monitor. The mouse responds as normal on the laptop screen if I have it open, but on the TV it is delayed. Any clue as to what might be wrong? I am running HDMI to a converter for the mini display port and have seen it work many times with no delay. I have changed the batteries and reconnected/restarted the computer and the mouse numerous times.