It takes 5 shots and quits shooting (?) I tried several times with the same results 
If you are using it with your new camera (i.e. not your A720) then you need to go into the script menu and change the
Display Off Mode to
[ LCD ].
I'll look into "goof proofing" the script when I get a few free moments. But that should do it for you.
Edit : goof proofed script attached. If you set the Display Off Mode wrong, it simply will not shut off. But the script no longer hangs.