Printer in Ubuntu "Cannot prompt for Authorization"

I was seeing this issue since loong time but never really got to the crux of it. After getting extremely annoyed with this message after every time I tried printing something from a GTK app, I finally decided to solve this problem. Interestingly this problem does not come for Qt (KDE) apps. Only GTK (Gnome) applications are affected.

I found a solution in this post http://ubuntuforums.org/archive/index.php/t-829706.html

Simple solution for this problem is to copy your printer. That will create a new copy of the existing configured printer. Now just print using the newly created printer. Everything works now!!

Don't ask me how!!!