Hi,
Sounds like you could be using the DeckLInk drivers instead of the Intensity drivers. Since Intensity and Intensity Pro cards do not have RS422 ports on them, the easy setups we supply will not check for serial ports, but the ones we supply for the DeckLink cards do so.
You can either adjust the easy setups so that deck control is set to not controllable, or use the Intensity drivers instead.
regards
Kristian Lam
Blackmagic Design