Question : Problem: Tunnel VNC through SSH - error "cannot listen to port: 5901 "

I am trying to VNC to a remote Suse Linux box, and tunnel the VNC session through SSH.

SSH works fine on it's own.

Here is what I have tried:
ssh -L 5901:remoteserver:5901 me@remoteserver
Password:
channel_setup_fwd_listener: cannot listen to port: 5901
Could not request local forwarding.
Last login: Wed Apr  2 23:16:24 2008 from my-ip-address
me@remoteserver:~>

I checked the open ports on the remote server with nmap and 5901 is there:
5901/tcp  open  vnc-1

There is no software firewall running on the server or my pc.
How can I get this VNC setup working?

Answer : Problem: Tunnel VNC through SSH - error "cannot listen to port: 5901 "

Woohoo!  All fixed!!!
The trick was this:
I had to use localhost instead of remoteserver as follows
ssh -L 5903:localhost:5901 me@remoteserver

As it turns out, for the tunnel, the hostname between the :'s is relative to the server.  
The client only resolves the "SSHserver".

For the points, it looks like a joint effort:
ravenpl - In hindsight, you were on the right track, but lacked a full explanation and I wasn't sure where to go until Barthax made it explicit with an example.  I chipped in with the final hurdle.