I would check Keyboard Shortcuts for anything out of the ordinary (Preferences -> Keyboard Shortcuts)
Possibly try changing the Launch Mail Client to some other key. -- default mail client starts when power is plugged in https://bugs.launchpad.net/bugs/304554 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs