In my win7 setup if have pcA as the primary computer, pcB as secondary and an xbox 360 connected to the network. The xbox has wmc extender enabled & linked to pcA. On pcB I have a shared folder which contains video etc. It is read enabled for everyone including guests.

I have pcA WMC library including the shared folder on pcB. This works fine. The WMC extender on the xbox however cannot access the folder. When trying to add the shared folder in the video libarary in extender I can access the pcB, however when I expand the pcB directory I get the message "pcB - no shared folders found".

I've tried setting up a guest account on pcB with no password but that made no difference.

Any solutions?
Thanks