I'm looking for a remote access solution (from a machine to the Ubuntu computer) that acts like RDP in Windows, i.e. a user can be logged in on the actual machine, and someone else can be logged in remotely.
I know about XDMCP, but it doesn't work in Ubuntu 10.10 with GDM. I know I can use another desktop manager, but others don't look as nice as GDM (at least ones I have seen).
Is there some other solution?