Tiger 10.4.11 Server – Leopard Client Folder Permission Problems

[b]Environment: [/b] Server:Tiger 10.4.11 Server with attached RAID Clients: 10 Mac Pros and G5s, running Tiger 10.4.11 3 Mac Pros Running Leopard 10.5.1 All Users have their own user name/password to authenticate to share Server is set as a [b]Standalone Server[/b] [b] Problem:[/b] When Macs running Leopard make new folders on AFP Shares, permissions are [b]Read and Write[/b] to that user only, [b]Read Only [/b]to Everyone else. This seems to have just started. So if Joe Smith on Mac with Leopard logs on to the Xserve's AFP Share and Creates or Copies over a folder, [i]only he[/i] can read and write to it. Only a Leopard User can change permissions via "Get Info", or the Xserve admin. This is causing absolute chaos. Please help Thank you in advance.