Thought I would start a new thread for this as nobody will read the old thread but I hope Mrs Bojangle saw my response to her scathing attack on me. Went to B&Q this morning and bought the dry lining back box, had black lugs, sorry guys it was the only one they did, no yellow, red or blue ones!! I couldn't snip the offending screw with pliers and had to resort to the hacksaw whilst being careful not to damage the stainless steel plate. As soon as I undid it I could see the problem as predicted, live wire hanging in space. Not sure with an installation one year old how that happens. The new box was slightly shallower and with the single plate being a triple switch, it was a bit like spagheeti junction in there and a squeeze getting everything back. For some reason the lugs wouldn't pull all the way forward which made it a nightmare getting the screws back in, it took the longest time!! There must be a knack to it. Thanks for all the help guys. Story finished.