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I did that bit about the updates all seems ok on that front.
Though things went a bit hairy there for a moment, cursor jumping all over the place, and the on screen page breaking up and showing more than one page at a time ...........I'm totally baffled!
But thanks for the advice, I will follow it up in the morning and if it still plays up, and if I refrain from bouncing it off the walls I'll take it back to the shop where I bought it and let rip!