prologScript problem

Hello,

I use SWI-Prolog (Multi-threaded, 64 bits, Version 6.5.3)
on Ubuntu 12.04

I have swi-prolog scripts that worked fine but
do not longer work.

As an example here is a little script
(in a file called "myscript.pl") :

---------------------------------------------------
#! /usr/bin/swipl -q -G1g -L1g -T1g -q -t main -s

main :-
         catch(goal, E, (print_message(error, E), fail)),
         halt.

main :-
         halt(1).

goal :-
         current_prolog_flag(argv, Argv),
         append(_, [--|[Number]], Argv),
         my_program(Number).
---------------------------------------------------

The problems depends on the first line I use :

1) #! /usr/bin/swipl -q -G1g -L1g -T1g -q -t main -s

     it enters in swipl and simply displays "?"

2) #! /usr/bin/swipl -q -t main -s     (no longer memory options)

	ERROR: Prolog initialisation failed:
	ERROR: script_file `13' does not exist

3) #! /usr/bin/swipl -q -t main -f     (-f replaces -s)

	ERROR: Syntax error: Operator expected
	ERROR: /
	ERROR: ** here **
         /home/my_script.pl

I do not undestand what happens.

Someone has an idea ?

Thanks a lot

Dominique