Hi.
I have read the instructions in the Repository Issues sticky thread and in several other sites and I just keep messing up my installation.
My Sources.list looks EXACTLY like this:

#

# deb cdrom:[Debian GNU/Linux 7.0 _Kali_ - Official Snapshot i386 LIVE/INSTALL Binary 20140108-18:08]/ kali contrib main non-free

#deb cdrom:[Debian GNU/Linux 7.0 _Kali_ - Official Snapshot i386 LIVE/INSTALL Binary 20140108-18:08]/ kali contrib main non-free

deb http://http.kali.org/kali kali main non-free contrib
deb-src http://http.kali.org/kali kali main non-free contrib

## Security updates
deb http://security.kali.org/kali-security kali/updates main contrib non-free
But after I do the clean, update and upgrade

apt-get clean && apt-get update && apt-get upgrade -y && apt-get dist-upgrade -y
and reset, it just doesn't start and I have to install everything all over again.
I just don't know what I'm doing wrong.

Details of my PC:

Kali version: 1.0 - 32 bits
Processor: Intel® Core™ i5-2450M CPU @ 2.50GHz × 4