There's a simple way to get a "Display" if you're using Windows as your home system:
Use putty as ssh login tool
Use VcXsrv (from sourceforge) as X-server at home
At putty enable X11forwarding (Connection->SSH->X11)
At VcXsrv disable access control
Install xauth on your server
Enable X11 forwarding in sshd, and restart sshd as follows.
$ sudo vi /etc/ssh/sshd_config
Search for X11Forwarding and change it to yes (if a # is in front and no other line without, remove the #)
$ sudo /etc/init.d/sshd restart
Logout and -in, you should get a message that an .Xauthority file has been created.
If it's still not possible to start a software with a display, check the log files of putty (via right-click at topbar) and the VcXsrv (at tray). Maybe you have to set 127.0.0.1:0 at putty X11forward or install xfonts on your server.
Hope that helps.