qbasic.hlp (Topic list)
Important Notice
The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
Out of stack space
This error can occur when there are too many active
subroutine, FUNCTION, and SUB calls, or when a recursive
FUNCTION procedure nests too deeply.
 
Change the structure of your program, or use the
CLEAR statement to increase the program's allotted
stack space.