Hmm. Maybe something to do with your computer then? I havnt seen that button in a while. But then again im not always looking for it. Maybe a computer restart. Seems to fix any client side issues. If not pm coldshadow?
There's a thing browsers have called a cache - it basically stores websites and data so it can help load them faster next time. Sometimes it takes a little while for your browser to realize the webpage has changed. Usually rebooting, or pressing F5/force refresh fixes it.