Page has expired with "Input type=file"

[Anon]

Hi All,

I use enctype= multipart/form-data
in the form tag to facilitate the form uploading.
So I have the Input tag with "file" to select the file to be uploaded.

Every thing works fine (the file gets uploaded and the form gets posted, say form2).

Now i go to some other page from this page
and when clicked back from this new page, i get "Page has expired" message instead of loading the "form2"

If I remove the Input tag "File" then the problem does not occur.

Anybody?

Dev