GTK+- Error

Many new ubuntu user will face this problem. This happens when you try to run an application from the terminal. The error is usually this:

Gtk-WARNING **: cannot open display:

Follow the following steps to correct this problem. Do all this on the terminal.

1. sudo apt-get install sux

2. sux - (give super user password)

3. xauth list

4. exit

5. xauth list

  ( you will see something like this

    Kaushik/unix:0  MIT-MAGIC-COOKIE-1  d4271cb3efeb1b70b0e980bfd6126a50

    copy that)

6. xauth add Kaushik/unix:0  MIT-MAGIC-COOKIE-1  d4271cb3efeb1b70b0e980bfd6126a50 ( you paste what you had copied)

Now everything should work fine!!!!