I'm not sure why the built-in minimize button stopped working though it's likely something to do with skin conflicts after updating vBulletin. At any rate, I've replaced the minimize button with a new one that's working for me now on the non-Habbo light skin.
If you're stuck in minimized mode you might be able to get unstuck by:
A) Change skins and try un-minimizing on a different skin
B) Logout of the forum, clear your browser cache and log back in
C) Post back here if the above doesn't work and we we will try to figure out where the heck' vBulletin stores information for which blockbody's are minimized and which are not.
Sorry for the inconvenience!










