handling command line parameters

[Jon]

I've managed to handle command line parameters with my stack, but 
something is strange.  The script looks like this:

on startup
  if $1 <> "" then
    OpenTheFile $1
    start player "myPlayer"
    call "trackPlayer"
    end if
  end startup

The problem is that, while the file is indeed opened (by my OpenTheFile 
routine), the Player does not start.  Is there something about not 
running the Player "too early" in the life of a stack, before it has 
"woken up"?  When I run the same routine at any other time, the Player 
does start up.

:)

Jon