Bug: Right click on some buttons makes the program crash

[Antoine Morand]

Hello,

I would like to submit a (heavy) bug:
When i right-click on some buttons (as far as i tested: "Table of 
Contents", "List of algorithms", "List of figures".) the program crashes 
(goes back to the desktop without any error message).

I use the french version of Lyx 1.5.0 rc1 patch1 on ubuntu.

If you need any precision, just ask.

See you!

Antoine