I think you might be mixing the two things together, which is a definitely understandable.
The board, PCI-6221, is only supported by the DAQmx driver (LabVIEW 7.x version driver) - This is why you get an error from AO Group Config. vi, which is a call to the traditional daq driver.
When you say that the Test Panel fails, what do you mean? Do you get an error or are you not measuring as expected?
See the following link for help on how to reprogram your code using DAQmx instead of Trad DAQ:
Also I would check out the DAQmx examples found using the Examples Finder in LabVIEW.
Help>Find Examples>Hardware Input and Output>DAQmx
Message Edited by Meister on 07-26-2005 02:56 AM