Thanks for your replies, but I've still got the problem.
I can't see any Axis assignment drop box....
In the main control screen, I double click on the cell below the Logitech Extreme 3D column and for the Action I want to map. This brings up the "Add Assignment Panel", wich contains drop boxes for "Key, Button", "Add Modifier", and text boxes "Added Modifiers", and "Currently In Use". There isn't any axis assignment drop box, and the "Key, Button" drop box only lists buttons, no axes.
Same deal trying to assign the mouse axes to something -- same screen with the same boxes, and the "Key, Button" drop list only contains the 3 buttons on the mouse.
Also the GUI manual (page 24) mentions nothing about an axis assignment drop box - it just says bring up the "Add Assignment Panel", then move the joystick in the axis you want to use or select the axis from the"Key, Button" drop down list. This doesn't work...
Maybe I'm missing something......