thanks for the reply
well all very frustrating
there seem to be problems with the USB sticks i have around the house.
So I have given up, for the WE, on the USB sticks
(The sticks have an apparently un-erasable " Bureau de Poche" installed )
so i found an underused PC now have the whole thing on that instead and it all works very well indeed
excellent
now all i have to do is 'transpose' the ELP
thanks again
vincent