prevent re-inserting data.

[eluser]TheFuzzy0ne[/eluser]
Are you simply wanting to prevent the user from accessing that form again, or to stop them submitting it again with the back button?

I've redirected for years, and it works for me. I see no reason why it shouldn't work for you. The back button just takes the user back to the form, it does NOT resubmit it if you redirect after you've saved the data to the database.