Unable to run Xantrex XT driver in LabVIEW 9.0 (error -1074001664)

[PhysicsAdv2010]

I am trying to control Xantrex XT 125-0.5 and Xantrex XT 7-6 power supplies with LabVIEW v9.0 but the drivers that I downloaded from the NI website does not seem to be working properly. I am trying to run the XanXT Application.vi and I am getting error 1074001664. I could not find a driver for LabVIEW 9.0 so I am using the driver for v8.0. Is that the problem? How can I solve this, and what can I do to use the driver to control the Xantrex power supplies?

[smercurio_fc]

I assume you are referring to the drivers on this page. No, the version of LabVIEW is not the issue. That error is generated by the VI if you set the voltage setpoint to a value that's higher than the overvoltage (OVP) setpoint.