Question Problem with Recent Topics Tab; not refreshing

I'm not quite sure what is going on so I thought I would see if the Kunena experts could help me out . For some reason I am having a problem with my "Recent Topics" tab. Basically here is what happens; a registered user logs on to the site, either from the home page or from the main forum index page. When the user clicks on the Recent Topics tab it shows that the user was never logged in and the newest topics aren't shown; its almost like the browser isn't allowing the page to refresh, like its holding on to the cache. Speaking of browsers though this is happening in Safari and IE. Any ideas?

Here is my config info:
*Removed since problem solved*

Yes, we are aware of this problem. This is actually a defect with Joomla 1.5.23 and has been reported to the Joomla core team (see joomlacode.org/gf/project/joomla/tracker...racker_item_id=25690 )

There are two possible ways to fix this. Use the technique written by Matias (link above) or copy the file ../libraries/joomla/environment/response.php from a J! 1.5.22 installation kit to your site.

Thanks!! Since I still had the old site on the server I was able to copy the old response.php file over to the updated site with out any problems! This appears to have fixed the problem! I've been looking for a way to fix the issue ever since I did the update, I should have come here first !

I have attached the patched file. Unzip the file and copy the contents to ../libraries/joomla/environment/