Software center will not let me authorize

When trying to install a program from the software center it will ask for a password. I enter my password and the authentication window goes away and/or tells me there is a problem and the program never installs. I can't get passed it. Please help! There is no problem, my password is correct.

I found the answer. There is a bug in Ubuntu where you set automatic login. When you change your root user account to automatic login you delete your password and it will no longer work. You must change ownership with sudo chown -R myusername:myusername /home/myusername

Thanks to Sergey for the answer! Setup auto login and now I do not have root authorization for anything

Have you tried installing the package via terminal? Try running sudo apt-get install [name of the package] in a shell.