Dear Sir,
My suggestion is to upgrade NI-DAQ to version 6.9.2 available for free to download at:
http://digital.ni.com/softlib.nsf/display?ReadForm&lookup=NI-DAQ&view=current&node=132060_US
After unistalling the old version and installing the new one plug in both boards and look in the device manager for any conflicts (If you are using windows)
Thanks for contacting National Instruments!