Preview -> back ... not working

I have AG 2.3.4

I add an entry and then click on preview and because I have seen a mistake, I click on the "back" button below the preview, it goes back but I cannot send from there.

I have to leave and come back and write everything again.

Ideas? Help please!

Xarah

Maybe I have to phrase my problem differently? A lot of people have looked at my post but nobody answered. Guess a lot of ppl have the same problem?

This is the guestbook:
http://www.fearless-5.ch/besucher/index.php

Now, go to "Eintrag hinzufügen" (add an entry), enter anything you want, type in the Captcha word and click on "Vorschau" (preview), now click on "zurück" because you want to add a smilie

This is my problem, it does not go back. It's like frozen. I don't know if this is new or have always been like this. There must be a solution.

Beware, I'm a php-newbie!

I can't believe, now it's giving out another error!

Somebody HELP!!

Xarah

I still don't know what to do