Most browsers recognize Ctrl+F5 as the "refresh/reload" key that bypasses the cache and re-loads the page from scratch. Using Ctrl+F5 you can avoid dumping your whole cache and having to build up your browser's memory for your preferences again at all sites you visit. Deleting the cache can have really annoying consequences as websites you frequent revert to a state of not behaving like they usually do when you visit until you re-introduce yourself to them.
A lot of stuff is handled by cookies, but not everything. On the matter of cookies, you didn't state what browser you're using, Boomer. That would have been helpful. In lieu of knowing which one you use, you could search whatever tools your browser provides for cookies associated with xtremeidiots.com and delete them.
One of those is likely to get your shoutbox working again.
deleted cookies also no good..... been using mozilla for quite some time.