Connect to Server via Remote Desktop?

Hi,
I have a PowerMac G4 running Tiger Server. The Admin tools don't work on Snow Leopard, so I administrate it through Remote Desktop.

On my Mini, the server pops up at the sidebar in Finder, with a "Remote Desktop" button at the top, everything works as expected.

On my HackBook however, it doesn't pop up at the sidebar. I can connect via the "Go to"->"Connect to Server", and I can access the Folders and connect via VNC. However my Mini appears on the HackBook automatically in the sidebar, so this is no issue with Bonjour at all, also the HackBook appears on the Mini.
The server doesn't even show up in the Network-section of the Finder.

Any suggestions to fix that?

I disconnected and reconnected the ethernet wire, now it works. Never mind...