Hello Nora,
When I say controller, I mean the network interface module. This is the module which connects to your computer via serial cables, probably FP-1000/1001, or FP-1600/1601.
So, one program works with FieldPoint (FP) 3, and the other works with FP 2? What happens when you try to run both with FP 3?
To install FP 2 on your computer, please follow the instructions in the following Knowledge Base.
http://digital.ni.com/public.nsf/websearch/7B21ADB6CD5ADCDF86256A3B0052D2A0?OpenDocument
In your case, you should probably be using FP-3.0.2. This is the latest and most stable build that supports LabVIEW 6.1.
Let me know if you have anymore problems.
Sincerely,
Sean C.
Applications Engineer
National Instruments