What did you connect the analog output to? What is the load impedence of your sink? My guess is that you are trying to drive something with more current than the DAQ card can handle. Those cards cannot put out more than a few mA, so you may need an amplifier circuit.
There are only two ways to tell somebody thanks: Kudos and Marked Solutions Unofficial Forum Rules and Guidelines "Not that we are sufficient in ourselves to claim anything as coming from us, but our sufficiency is from God" - 2 Corinthians 3:5