How to fix Display problems in Ubuntu

Problems with you screen? Here's a short step for you!

Seldom, Ubuntu might not detect your monitor and other screen resolutions. If you change your graphics card, the OS might not recognize it. You can fix this problem by reconfiguring your graphics settings. You need to do the following:

1. Restart your computer.
2. Logon to the terminal on startup by pressing esc (escape) key when Grub loads.
3. Follow the prompts accordingly.
4. Key in "sudo dpkg-reconfigure xserver-xorg".