Mouse Wheel gone

[Christian Menzel]

It's strange, I have 2 machines (1 desktop, 1 notebook) with the same
packages, both produce the XKB error message. On the notebook the
keyboard mapping is correct despite of the error and mouse wheel is
working. And on the desktop I have to switch manually to the correct
keyboard mapping and the mouse wheel is not working.
Time to check the XFconfig files. Any place else to look?

Chris