Problem with session and "back" in browser

[eluser]bigtony[/eluser]
When you click the back button in a browser the browser will try to find a copy of the page in its own cache memory, and if found will not access your webserver (and therefore not see that the login status has changed).

To solve, you need to tell the browser not to cache that particular page. See [url="http://ellislab.com/forums/viewthread/126245/"]http://ellislab.com/forums/viewthread/126245/[/url] for an example of how to do this.