Nautilus network browsing problem

[Paul Erickson]

For some reason, due to updates in the last week or so, Nautilus cannot 
browse via the Windows Network, but these filesystems can be mounted 
manually using 'mount -t cifs...' commands. Nautilus will then see the 
filesystems. but only because it isn't required to use Windows 
networking to get to them (by mounting them manually, that part of 
Nautilus is bypassed).

Does anyone know why the CIFS mounts would work, but Nautilus Windows 
networking would not?

Thanks in advance.