I have Windows 8 installed on my computer. I followed the instructions described in this video http://www.youtube.com/watch?v=hOz66FC0pWU to install Ubuntu 14.04 and use dual boot. The installation process went well and everything seemed to work until I typed in my login details and password. After that, the screen freezed completely and Ubuntu did not work. I tried to log in as a guest, but the problem persisted.
Then I tried installing Ubuntu on another computer I have (on which Windows 7 is running). Again, the installation went just fine but I faced exactly the same problem!
This is how the screen looks like http://postimg.org/image/gjf4beinv/
What could be the problem? How can I fix it?
Thank you.