I've been a Ubuntu user for the past few months now, dual booting between Windows 7 and Ubuntu on my Laptop, and always trying to learn new things with Ubuntu, and I learned that it's possible to change the desktop environment from Unity to Xfce, so I used this code in the terminal
sudo apt-get install xubuntu-desktop . I don't really have a problem with Unity for the most part except the top panel bar never ceases to leave the screen, and is incredibly annoying on occasions.
Anyway, while I waited, I went to have lunch and when I returned, my laptop went into sleep mode, but I did notice that the installation had completed, and without any extra thoughts I logged out and switched over to Xubuntu.
Now everything works fine for the most part, but as soon as I switch over it gives me the message "System Program Problem Detected". It takes it's own time to log out, and there are also occasions where I cannot switch back to Unity at all.
When I am back in unity, I'm getting the same problems, which I didn't get before. So I'm just wondering if it's possible to remove Xubuntu with a terminal command and reverting it back to Ubuntu completely? After that I'd like to just use Xfce alone without the Xubuntu desktop, or at least try.
Help is much appreciated.