Well I am happy to report that, after following the redist advice and switching off the AVG resident shield I have stuttered aloft!
The machine as it stands is way below minimum spec (core 2 Duo 8500, 4GB DDR2 and 9600GTE 512MB) and CloD ran (badly).
My table is stacked with an i5 760, GTX 550 and associated mobo and RAM which I will try to install shortly
Happy man, but it was a fight LOL