I'm using Ubuntu 12.04 lts. When I upgrade from 11.04 i've got some Errors with nautilus. Yesterday I uninstall nautilus and reinstall it. I made the last system update (with a unity-greeter update). Since then I can't not see Ubuntu nor Ubuntu 2D Sessions... I can use kde desktop.
What is the problem right now?
Thank you for helping.
Edit 1: I remark that into /usr/share/xsessions ubuntu-2d.desktop and ubuntu.desktop dont exist...
