I have installed NS2 (using Ubuntu 13.04) Tried to update Path and Library Path using command gedit .bashrc but getting the following error.
** (gedit:3732): WARNING **: Couldn't connect to accessibility bus: Failed to connect to socket /tmp/dbus-UnpdNFJM8M: Connection refused.
(gedit:3732): EggSMClient-WARNING **: Failed to connect to the session manager: None of the authentication protocols specified are supported.
can you help?