SO I HAVE A LEANING CHAIR THING AND ITS JUST LITERALLY LOCKED NOT EVEN IN AN UPRIGHT POSITION ITS UNNATURALLY LOCKED LIKE IM LEANING BACK AND I FIDDLE WITH THE UNLEAN/LEAN STICK THING ON THE BOTTOM AND SUDDENLY THE CHAIR JUST FREEZES AS ITS LEANED BACK. I CANT MOVE THE LOCK EITHER ITS SHUT IN PLACE HELP??