I have tried several USB ports, no different.
the joystick only has a problem with the X axis.
If I roll left or right the yoke goes as far as it can, and if I bring the joystick back to the centre the yoke wont move back, I have to push the joystick the other way to try and get to the middle and then it just goes fully in the other direction.
Weird.
Appreciate everyones input - thank you.