Back button not working?

[Manos]

I don't know why, but the back button doesn't work in some cases, with version 3.0.2.

For example:
1)Open the main reviews' index:
http://www.gameworld.gr/reviews/all
2)Click on a letter
3)Then click on a review
4)Now press the "Back" button.

You' ll see that you get a message which asks you to "Send again" the information.
However, this only happens with Firefox.

[row1]

Yeah when you click a letter it does an HTTP post, so if you click refresh or visit a link and then go back it will prompt you.

I can look at changing it so the letter filter appears in the URL, but if I remember correctly I was doing this originally and there was some issue with the pager.