Lost some keyboard shortcuts

[Mark Hull-Richter <mhullrich gmail com>]

I'm not sure what caused this, but suddenly my keyboard shortcuts for switching workspaces and moving windows to other workspaces are not working.  Most of the others are still working (except <alt>x to log off, which never worked), but these seem to be gone.

Can I restore them some way other than logging out and back in or manually resetting all of them?

Thanks.

mhr