Paul, I was unsure which module you meant, so I guessed at the following testing procedure:
1) sudo modprobe -r rt2500
result: ra0 (wireless) now no longer appears in 'Networking'.
2) sudo modprobe -r via-rhine
result: eth0 (wired) now no longer appears in 'Networking'.
3) sudo modprobe via-rhine
result: eth0 now reappears in 'Networking'.
4) Deactivate and activate wired network in 'Networking'.
result: system freezes.
Paul, I was unsure which module you meant, so I guessed at the following testing procedure:
1) sudo modprobe -r rt2500
result: ra0 (wireless) now no longer appears in 'Networking'.
2) sudo modprobe -r via-rhine
result: eth0 (wired) now no longer appears in 'Networking'.
3) sudo modprobe via-rhine
result: eth0 now reappears in 'Networking'.
4) Deactivate and activate wired network in 'Networking'.
result: system freezes.