Hello. I have been using Ubuntu 12.04 LTS since it came out. It worked perfectly for many months until December 2012 when it was updated. The "error notifications" do not allow "copy and paste" so I cannot tell you what the errors are. The things that are crashing and causing error messages are Ubuntu 12.04, Time and Date, & Ubuntu Desktop. If I restart the computer all those problems seem to resolve for the most part (until I turn my computer on the next time). Has anyone else experienced problems since the update this past December? Thanks.