After checking all of the above it would appear to be bump steer. (thank you for all the sensabile remarks. Driving for 28 years without even a parking ticket). Bridgestone tyres MOT 3 weeks ago by a very good garage who would fail it if it was a grey or almost fail. All in all it would appear it is something i will have to live with, or would putting flexi's on it make it any better ?????