Hi, I had a new bath/shower installed and recently noticed that I can no longer open the bath/shower screen outward (I often just step around it anyway).. I noticed that the glass screen appears to have dropped lower so it is blocked from opening by the metal frame attached to the bath. On closer inspection I also noticed that the separate piece of glass (the screen is made up of two piece with hinge between) that is attached to the wall appears to have come away from the metal frame leaving a small gap. Any idea what could have caused this and how it might be fixed? Thanks very much!