Centos 6.3 Screen resolution - GUI not fit for default resolution and we not able to change it. No other option available in screen display settings

Centos screen resolution - GUI not fit for default resolution and no other option was in screen display settings.

Remove xorg.conf file having resolution setting. Follow below steps:

1. Go to /etc/x11/ 
2. Remove xorg.conf file
3. Reboot System

When system starts and comes to gui. Now go to screen display settings. All other options for screen resolution will be visible now. We can set it now.