Why is this giving me an error a few seconds in (no wait command) of STACK OVERFLOW??? As far as I can tell, SMALL=0 and BIG=100...

Could you show me whole of @TXT subroutine?

Sure, even if i comment it out it gives the error.

Don't use GOTO in a subroutine which is called by GOSUB. When the program calls a subroutine with GOSUB, the pointer will be stacked, and when the program executes RETURN, the stacked pointer will be flushed. A subroutine which is called by GOSUB should be finished by RETURN.

Thanks!