Hi Sasha 1,
Yes, you will first have to uninstall NI-DAQ that was shipped with LabVIEW. Make sure you have no reference to NI-DAQ on your system. You will then want to install NI-DAQ 6.1 on your system (which is the last driver to support your board).
What probably happened was that you installed NI-DAQ 6.1 over NI-DAQ 6.9.2 and the problem is that the LabVIEW VIs for DAQ still referenced the old driver. Therefore when LabVIEW tried to call them at run-time, you got the linker error since the driver no longer existed on the system.
You might have to go through a couple steps to clear things correctly. You might have to uninstall NI-DAQ 6.1, reinstall NI-DAQ 6.9.2 and then uninstall NI-DAQ 6.9.2 (remove reference from LabVIEW) and th
en reinstall 6.1.
It might simply be easier to remove all NI software on your system by uninstalling it from Add/Remove Programs and then reinstalling LabVIEW without the DAQ driver and then install the NI-DAQ 6.1 driver.
Anyway, hope that helps. Have a good day.
Ron
Applications Engineering
National Instruments