Hi Rick,
You say you are using LabVIEW 6 but have you upgraded to 6.0.2.
There are a number of reported problems with application builder that 6.0.2 will fix.
If you are already at 6.0.2 then I would suggest zipping up your simple VI application and sending it to NI via the Contact Us | Report a Problem Links.
Ray.
Regards
Ray Farmer
