Same problem to me. Nautilus hangs and then gives up with a "Could not register the application: È stato raggiunto il timeout" message.
Workarounds; $ Sudo nautilus keeps working. Restarting Unity usually works, but I wouldn't consider it a solution. I attach strace/ltrace. I'm on a amd64 with nvidia kernel and 12.04 ** Attachment added: "ltrace.nautilus" https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1000348/+attachment/3249997/+files/ltrace.nautilus -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1000348 Title: Nautilus hanging at start. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/nautilus/+bug/1000348/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs