Hey Kent,
The first thing I would do is open up Measurement and Automation explorer on the target machines. While you have MAX open make sure the NI-488.2 driver is installed and the VISA run-time engine is installed. These are two requirements for the application and they will not install with application builder. If you don't have MAX then you probably don't have 488.2 or VISA.
Verify that you can communicate with the instrument and send simple commands like "*IDN?". If this works you might want to open up NI-SPY and see what commands are being sent and received.
I hope this helps out.
JoshuaP
National Instruments