Thanks for the bug report. The error dialog that you see shows that a certain program have crashed due to some reason (in that case gnome- bluetooth). You can use that dialog box to report the crash which will also add the crash logs to the newly created bug report. I'll close this bug now.
** Changed in: unity (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1026112 Title: System program problem error message displayed when logging into user session immediately after log out of guest session To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/unity/+bug/1026112/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs