Hello Bernard,
My guess is that you are plugging your laptop into a docking station, and that the MXI-3 card is installed in the docking station (correct?). Furthermore, I would speculate that the layout (perhaps non-standard) of the PCI bridges (laptop <-> docking station <-> MXI-3) may be causing this failure. To resolve this issue I would recommend contacting National Instruments Technical Support directly at http://www.ni.com/ask by selecting either "Phone NI" or "Email NI". I would also recommend that you open your Device Manager (Start >> Settings >> Control Panel >> System >> Hardware >> Device Manager), select View >> Devices By Connection, open all of the twiddles in the tree control, take some screen shots (Alt-Print
Screen), and forward that information to NI's Technical Support staff. It would also be helpful if you could provide them with the model/configuration of laptop and docking station that you are using.
Sincerely,
Jeremiah Cox
Staff Product Support Engineer -- System Software
National Instruments -- http://www.ni.com