redirect problem in IE when url is cloaked

[eluser]zeratool[/eluser]
hello,

i have a webapp that's built on CI, when viewed in Firefox, there's no problem at all.
The problem is when using IE(all versions). Here is the scenario:

on login page, once the username and password are correct , i do it like this:

redirect('user/page');

IE cannot redirect it(url is cloaked), but the user is being logged in, you will know it when you reload the page, you will see in the status that the session is stored.

Anybody here experienced the same problem?

Your help is very much appreciated, thanks in advance!