Yes you
can use the 6601 with LabVIEW 5.0. Have you tried searching the examples under the 'Help' menu?
If you don't find anything there, you may have installed NI-DAQ
without support for LV 5.0. You should be able to fix that with a reinstall of NI-DAQ, making sure that LV 5.0 support is checked.
Hope this helps.
-Kevin P.
ALERT! LabVIEW's subscription-only policy came to an end (finally!). Unfortunately, pricing favors the captured and committed over new adopters -- so tread carefully.