This exact issue has already been seen before, except for the error number, that was 1050. However, I believe it has to do with the same problem, that is, an incompatibilty between LabVIEW 6i and MatLAB 6.1.
In order to solve this issue, you should contact more directly NI, either by email or by phone. The link to contact them is www.ni.com/ask. You tell the person who talks to you from NI to search for document car2J0A33HU.
Aguila.