Problems with multi-page form

[KC Smith]

I'm running into problems using Struts and multipage forms with Internet Explorer 6.0. If the user submits to proceed from form page 1 to form page 2 and then clicks the back form button to return to form page 1 to edit values, the browser title changes to "Invalid syntax error" and the page body is
" The page cannot be displayed
The page you are looking for might have been removed or had its name changed.
".

The paging works fine with Netscape and Firefox. The information we are posting does not include any user information that should cause the "Invalid syntax error".

Anyone run into this problem before or have any insight?

Thanks