Updated Ubuntu from 12.04 to 14.04 LTS. All seemed to go smoothly. After re-boot, the desktop displays the wallpaper and my user name appears with a password prompt. Ubuntu 14.04 LTS appears in the lower left. The mouse is detected and works as described below.
After entering my password, a message box appears with "System program problem detected. Do you want to report problem now? cancel report problem?
Selecting either choice results in the message box disappearing but no desktop icons appear and the wallpaper remains.
There does not appear to be any way to start a terminal, initiate a shutdown/re-boot and make any selection. I have to do a hard power button reset to get off the wallpaper screen.
I have already tried this recommended post:
Press Ctrl+Alt+F3-> ENTER YOUR username & password -> enter these commands-> sudo apt-get update -> sudo apt-get install –reinstall ubuntu-desktop -> sudo apt-get install unity -> sudo shutdown now -> Turn On your PC & check! – Jax-L May 2 at 16:11
and I have tried this similar posting:
sudo apt-get update
sudo apt-get install ubuntu-desktop
sudo apt-get install unity
Thanks for any reply.