Just to say thanks to all the guys who posted comments, especially sorebits.
Your thoughts put me on the right track, and after a trip to the range and a brief discussion with the guy who is giving me lessons it turns out I had the dreaded reverse pivot !!!!.
Anyways he told me I was leading with my right arm and by relaxing my shoulders and thinking of pulling through with my left arm, my shots are now flying and i'm taking a nice divot.
Once again cheers to you all for putting me back on track.