2 blacks together are tripping, they are only wires connected at present. as i mentioned i belive(d) these are for 2nd light fitting (as this is red, black aswell) and remaining one the supply from RCD, so i dont understand why they are tripping if nothing else is connected
picture of problem...
http://mixedsounds.com/here
picture of problem...
http://mixedsounds.com/here