Dear Andrew, I have looked into this issue. It sounds to me like it is a corrupt installation of NI DAQ. I suggest that you unistall that version of ni daq on the machine, and then reinstall it. If you continue to get the same error then it is a possiblity that LabVIEW has also been corrupted. Below is a link of this problem happening before.
http://exchange.ni.com/servlet/ProcessRequest?RHIVEID=101&RNAME=ViewQuestion&HOID=50650000000800000012600000&ECategory=Measurement+Hardware.Multifunction+DAQ The lvdaq.dll should be intialised during the installation of ni daq. Also I advise you to istall the latest version of NI DAQ also. You can download the latest version of this driver on ni.com/downloads. NI DAQ 7.2 is the most up to date at the moment. I hope that this helps. Kind Regards Louis Price Applications Engineer National Instruments
