Ubuntu 12.04: Pidgin stuck at the launcher

[julialeconte at Safe-mail.net]

Hello experts - I need your help

I have installed Pidgin, on Ubuntu 12.04 LTS. It's Pidgin version: "1:2.10.3-0ubuntu1.6".

The problem is - when invoked (for example - typing "pidgin" at a terminal) - its icon shows up in the launcher -but it's stuck there. Nothing happens when you click on it. No window gets open.

Any ideas how to fix this?

Very strange

Julia