INSERT doesn't insert

[Cristóbal De Jesús]

Code:

EXPORT STRINGIDS()
BEGIN

LOCAL STRGS := {}, STRGID:=0, STRG:="";

  FOR STRGID FROM 1 TO 100 DO
    STRG := STRINGFROMID(STRGID);
    INSERT(STRGS,1,STRG); // Misbehaving here!
  END;

RETURN STRGS;

I tried the INSERT command with lists, in the Home screen, and it doesn't seem to insert items to lists.

Most likely, I am missing something here...