I'm a new Xubuntu user (a few months). I know a small amount of scripting but am in no way an expert. I've been running 13.10 without issue for awhile now and decided to upgrade to 14.04 using the in-system updater. The upgrade seemed to go uneventfully until the reboot. The system rebooted, I got the splash screen then everything went black. However I was able to use cntrl+ apt +F1 to log in to the command line. Yet everything that requires a GUI fails. Any ideas?