Login issue

Hi,

Im using a sidebar text widget with some code to display a welcome message and the name of the logged user when [s2If is_user_logged_in()] and displaying Login and Register page for logged out users with [s2If !is_user_logged_in()].

HERE IS THE PROBLEM: When I login my site does not recognize me as logged in untill I ctrl+refresh the page.

Maybe its a caching issue?
There is any way to purge the page cache after I log in?

I need some help please 🙂

Thanks

http://wordpress.org/plugins/s2member/