Root Login

1) "At the end it asks me to do: sudo apt-get autoremove I do this but then it says that I need root access to do it."

You don't need permanent root access. Sudo gives you SUperuser DO rights like temporary root. It will just ask for your password. Just go ahead and do what it asks...

2) "Also I don't have a boot screen anymore" Have you opted to log-in automatically. If gives you the chance to get into the boot screen but you need to be quick because it only lasts for a couple of seconds...

3) "or the log in sound how do I fix that?" Have you disabled the log -in sound?

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Ubuntu Forums - Absolute Beginner Talk - http://ubuntuforums.org/forumdisplay.php?f=326
Kubuntu Forums - Help the New Guy - http://kubuntuforums.net/forums/index.php?board=7.0

Basic Toolkit
1) Download the Linux Starter Pack - http://www.tuxradar.com/linuxstarterpack
2) Look at the UNOFFICIAL Ubuntu Guide - http://ubuntuguide.org/wiki/Ubuntu:Jaunty
3) Look at Psychocats - http://www.psychocats.net/ubuntu
4) Download the Ubuntu Pocket Guide and Reference - http://www.ubuntupocketguide.com/index_main.html

You don't log ni as root EVER. The 'sudo' command you are using permits you to run administrative tasks making root redundant. Alsologgin on as root has a million secrurity implications which is also why it is disabled.

if you run the command:

groups

You will see the list of groups you are in, if you are not in the admin group then your user is not permitted to use sudo and will need modifying by yourself to get access, or by someone who has limited your access on the system on purpose (like an dult might do to a child to prevent system corruption)