Okay, so I've learned that chat hacks have been broekn for awhile now. If you don't know how to fix this, you can actually do it the old way that it was done before we had the options menu.
1. http://community.wikia.com/wiki/User:Nitz_X/global.js Copy the contents of this page to your global.js
2. Open up your talkpage/userpage.
3. Load chat from the sidebar.
If you're ever having issues, you can easily fix your pings, chat clear, and AFK button this way.