problem with arduino software

Whenever I try to do anything from the File menu (in the arduino software) the window just closes. It's really weird, I've never had any problems before. I recently upgraded to ubuntu 15.04, so maybe it has something to do with that. I would appreciate any help.

Thank you

The answer is just a few threads down.
http://forum.arduino.cc/index.php?topic=318520.0

thank you