Really? By just installing ubuntu-gnome-desktop packages will upgrade 12.10 to 13.04?
Well aware of that. In fact, I had not intended to run 13.04 at all. I had downloaded and installed Ubuntu 12.10, but then decided that I wanted to run Gnome Shell so I updated everything and then followed the instructions listed here:
Could you please share the output of the following commands:
cat /etc/issue && echo -n && lsb_release -a && echo -n && uname -a