shared printers in F8 - problem?

[Mike]

Does anyone know if there is currently a problem with CUPS printer sharing?

 A month or so back everything was working fine with shared usb printers
on my lan.  Today one of the users on a machine on the lan could not see the
printer shared from another machine in the network and I have not made any
changes apart from F8 updates in the last month.

Any help/workarounds appreciated.