Upgrade Ubuntu 13.04 to 13.10 computer frooze

[Arrowman2]

Hello,

My computer frooze during the upgrade proces from Ubuntu 13.04 to 13.10. It did not respond for more than two hours, so I shut it down by pushing the power button for 5 seconds. Now it starts with Ubuntu 13.10, but parts of the interface are missing. For example all the options at the right top of the screen are gone, so I can not shut of the computer normally. Also I can not reach the terminal trough the interface. I can use the internet.

I am not very experienced with Ubuntu.

Thanks for any tips or help how to solve this.

[heir4c]

For terminal use Ctrl+Alt+t
and type:

sudo apt-get update && sudo apt-get dist-upgrade