OK this happened once before but then stopped.
I have the G5 and MBP on the same network. When I click on network on the MBP, it sees the G5 and goes through the normal AFP logon process.
The other way around (G5 to MBP) and it asks me to logon using FTP protocol. If I use cmd+k, it uses afp. The settings on both machines are exactly the same.
I have tried unchecking settings, restarting, checking and restarting, but problem persists - any help please?