Quick question, being a linux newbie this would be my first big update from whatever version of ubuntu i currently have to this, and i would like to know how i go about the update process? can i simply run the update manager like i do regularly to update all my stuff, or do i have to download the whole OS again? If i have to download the whole OS again, how do i go about installing it over the top of my current ubuntu install without loosing any configuration or important data?