Hi L. C. Lowe,
Looking through old service requests, it looks like this error could be caused by any number of different things, but they all seem to correspond to LabVIEW version 6.1.
I highly recommend that you try downloading and installing the 30-day trial of the latest version of LabVIEW (8.5) to see if you can reproduce the error-
LabVIEW 8.5 Evaluation Download for Data Acquisition Applications -
https://lumen.ni.com/nicif/us/lveval/content.xhtml
If you ARE able to reproduce the error in the current version of LabVIEW, let me know and I will investigate further.
Eric V
National Instruments
Applications Engineer
Certified LabVIEW Associate Developer
"I'm a Ramblin' Wreck from Georgia Tech and a helluva (NI Applications) Engineer!"