Admin Forum:What is going on?

On the wiki that I admin on, the Fairy Tail Fanon, a user's talk page just went haywire. Had no idea how to approach it besides simply purging the page, deleting all the info. Now it's back to normal seemingly. In the picture shown, it's pretty obvious it's a serious issue. It goes like that for the whole page almost. I have no idea what it is, some help would be awesome. Also, I'd like to know the ideal way of dealing with it next time. Please and thank you.Zicoihno (Talk to Me) 08:42, January 10, 2013 (UTC)


 * Firstly, I have now reverted the talk page to an older version, so it should look right now. If this ever happens again,you can always go back to an older revision via the page's history.
 * Now onto the issue itself - do you happen to use the visual editor? Occasionally, it is known for doing this.
 * Thank you very much. :) I had thought of doing that, but when I previewed reverting the most recent edit, it didn't even come up at all -- the preview, I mean. Also, even in source mode, it looked like a total mess.Zicoihno (Talk to Me) 09:00, January 10, 2013 (UTC)
 * Once the garbage code is on the page, it won't disappear if you switch to source. You needed to have gone back to an older revision.