Problem now fixed with the help of lovely weavolution members!
Problems were ; tension on the knife was all over the place.
I missed a vital step in setting up my warp and forgot to warp *over* the back beam, ooopsy!
Also I am using a chenille warp which due to the fuzziness is a pain!!
But very happy now its all sorted :) I shall now proceed to start my first hand weaving session in five years!
Thank you