Hello! Thanks very much for your help. I am calling it a night and will try again tomorrow. I have seen that when I move the gear lever, there is no movement at the mechanism where the cable joins the gearbox. However, if I manually move the part to other position then try reverse with the lever, the cable moves the part to its original position. This may make little sense without knowing the name of the 'part',sorry! It makes me think the cable going from gear lever might have snapped? Hm...hopefully all will become clear in the morning. Thanks again