Hello,
Let's focus on your Matlab Script Node problem for now. There are a couple of possible sources.
First, take a look at the KnowledgeBases titled
LabVIEW 6.x and Earlier Does Not Interface Properly with MATLAB 6.1 or MATLAB 6.5 and
LabVIEW 7.0 Hangs When I Place a MATLAB Script Node or Load a VI That Already Contains a MATLAB Scri.... Each of these contains a drop-in replacement .dll and instructions on how to use it.
A similar issue has recently surfaced with Matlab 7.0 and LabVIEW 7.x. R & D is aware of
the problem and they are currently working on a solution. Unfortunately, if this is your situation, the only immediate fix it to downgrade your version of Matlab.
I hope that this helps.
Regards,
P.J.
National Instruments