Frameset problem

Dear All,

I am facing one problem related auto frame set, same problem reported by some one in 2009(I have searched in the forum) but did not get the ans and exactly same problem I am facing. Problem is :

I have a form which has an Auto Frame setting to open a form in a frameset. As per workflow email goes to representative manger for approval with url link, when representative manger open the URL link through email then he got HTTP 404 and the URL does not attempt to open the frameset. But when I remove the aotoframeset property from from then manager able to open that url link in web and that forms open. But with autoframeset property it does not work.

My test version (on test server) works fine with autoframset set property with a user with the same kind of access.

I have done some searching and could not find some solution.

Please suggest, The problem is in only Production server link.