Hi Joe,
Has this set up ever worked before? If it has, what has changed since when it last worked?
If it has never worked, could you please give me more details as to under what condition does this error occur? Exactly what steps we have to follow to reproduce this error? Is there an error code associated with the error message? (possibly attach a screen shot of the error).
Thanks!
Yi Y.
Applications Engineer
National Instruments
http://www.ni.com/support