Yes it turned out to be the EGR valve.
After looking around the forum after registering i took the EGR off, banged it on my vice and fitted it back on to the engine. Thereafter the car ran fine so let's hope it will be ok for now. At least i know what it is which was the annoying part.
I will post up in the appropriate area details of my car, symptoms etc and the cure so hopefully someone else can read and benefit.