Ok, it's fixed. I used to Synaptic to reinstall every gnome library and now it works.
Looks like it was some kind of distribution upgrade problem. ** Changed in: gtkmm2.4 (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1581786 Title: cannot open libgtkmm-2.4.so.1 no launch To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/gtkmm2.4/+bug/1581786/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs