title: Unable to log in to Ubuntu running on VirtualBox
body: <p><a href="https://i.stack.imgur.com/feZv6.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/feZv6.png" alt="Enter image description here" /></a></p>
  <p>Recently I created a <a href="https://en.wikipedia.org/wiki/Ubuntu_version_history#Ubuntu_14.04_LTS_.28Trusty_Tahr.29" rel="nofollow noreferrer">Ubuntu 14.04</a> (Trusty Tahr) VM in VirtualBox which is running on my Windows 7 laptop. It was working fine, but I am experiencing very strange behavior now. After entering the right password it is again displaying the login screen. But <em>if</em> I enter the wrong password then it says the wrong password that is expected. I checked the log file of VirtualBox, but there is nothing.</p>
  <p>RAM and HD allocated for VM is sufficient.</p>
  <p>Below is the screen again and again appearing after entering the right password to log in.</p>