Bryan,

What is your exact directory structure, what is the default work directory and where and how exactly you set your PATH?

Assuming that the default is MAIN application directory and DATA, TUT are subdirectories

then

* we are in MAIN directory now
SET PATH TO DATA, TUT

Data and Tut are sub directories to my main program directory (call it c:\test\). I'm issuing SET PATH TO TUT to try to switch it to the TUT directory. Do I need to use SET DEFAULT also?