Usually, the -Y or -X command line switch will activate X11 tunneling, the -x switch typically disables X11 forwarding.
The -X flag to the OpenSSH client enables X11 forwarding. The server must also have support for forwarding enabled. Source: ssh(1) manpage
PuTTY cannot directly support running graphical programs. If you install an X server on your computer, such as Xming, you can then enable X11 forwarding in PuTTY, under the SSH menu. Check the box labeled "Enable X11 forwarding" and set the X display location to ":0". You should then be able to run gedit.
To install X11 on a Mac you could try Fink. Apple has information about X11 on their Developers section. (See links below)
One is named X11 and the other is named terminal
Smart? It would be genius. The X11 is an amazing headset.
120
x11
x11 * 11root(x) = x11+1/11 = x122/11
that's a twelve
13 × 11 = 143.
X11 is enabled and launched by default in most desktop distributions. If it is installed but not started automatically, you can usually start it with the startx command.