Openssh in KuruminNG

Openssh-server is available in the KuruminNG repos. So I installed it.
Then I ran it with this command

ssh 192.168.1.4

(where the IP was for Ubuntu on the Mac)
This worked fine after I accepted the IP.
However, even though I could see everything on the Mac (e.g using ls at the command prompt), I couldn't get even a single thing to work.
Most gave the error "Can't connect to X server".
This could well be that kurumin works in KDE 3.5.9 while Ubuntu was running with Gnome. So basically, I was trying to open kde stuff in gnome.
I'll have to research if this is totally out of the question.