I have the same issue, but through browsing various forums, it seems that this change is caused by the latest iTunes update (iTunes 7). All iTunes clients can see my shared music (done through rhythmbox). I can see iTunes7's shares, but cannot access the libraries themselves.
I have the same issue, but through browsing various forums, it seems that this change is caused by the latest iTunes update (iTunes 7). All iTunes clients can see my shared music (done through rhythmbox). I can see iTunes7's shares, but cannot access the libraries themselves.