>Has anyone seen this error?
>Phar Lap fatal err 10049: Ran out of stack buffers
>
>It started today on this program I'm working on. It doesn't happen all the time to it's to track down. The error is displayed out on the dos level.
>
>The only thing I'm doing different than any other program I write is that in the prg I have a function defined rather than procedure. Is there some limit on open files and the number of calls to other procedures that I can do from within that function? Any arrays and variables I'm using are released as soon as I'm done with them. So I can't see where this memory issue is coming from.

What is your OS? Phar Lap was the maker of a well-known DOS extender in the FPD days. What are your extended memory settings (XMS, DPMI)? Depending on the OS you might be able to experiment with a STACKS setting (e.g. STACKS=9,256) in CONFIG.SYS/.NT.