driver glx

eu invertei de tentar instalar o driver opengl no meu linux ubuntu.....
aí no meu usuário ,eu não consigo visualizar a tela( como se a imagem estivesse toda deslocada em linhas... difícil de explicar)
tentei desinstalar o driver no gerenciador de pacotes Synaptic e apareceu isso:

W: Duplicate sources.list entry http://archive.ubuntu.com hardy/main Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_hardy_main_binary-i386_Packages)
W: Duplicate sources.list entry http://archive.ubuntu.com hardy/main Translation-pt_BR (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_hardy_main_i18n_Translation-pt%5fBR)
W: Duplicate sources.list entry http://archive.ubuntu.com hardy/main Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_hardy_main_binary-i386_Packages)
W: Duplicate sources.list entry http://archive.ubuntu.com hardy/main Translation-pt_BR (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_hardy_main_i18n_Translation-pt%5fBR)
W: Duplicate sources.list entry http://archive.ubuntu.com hardy/main Packages (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_hardy_main_binary-i386_Packages)
W: Duplicate sources.list entry http://archive.ubuntu.com hardy/main Translation-pt_BR (/var/lib/apt/lists/archive.ubuntu.com_ubuntu_dists_hardy_main_i18n_Translation-pt%5fBR)
W: Duplicate sources.list entry http://security.ubuntu.com hardy-security/main Packages (/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_hardy-security_main_binary-i386_Packages)
W: Duplicate sources.list entry http://security.ubuntu.com hardy-security/restricted Packages (/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_hardy-security_restricted_binary-i386_Packages)
W: Duplicate sources.list entry http://security.ubuntu.com hardy-security/universe Packages (/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_hardy-security_universe_binary-i386_Packages)
W: Duplicate sources.list entry http://security.ubuntu.com hardy-security/multiverse Packages (/var/lib/apt/lists/security.ubuntu.com_ubuntu_dists_hardy-security_multiverse_binary-i386_Packages)

acho que voce duplicou alguma linha ai.

me mostre o seu sources.list

onde posso ver isso?

sudo mcedit /etc/apt/sources.list

deb cdrom:[Ubuntu 7.10 _Gutsy Gibbon_ - Release i386 (20071016)]/ gutsy main restricted
## Major bug fix updates produced after the final release of the
## distribution.
## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## universe WILL NOT receive any review or updates from the Ubuntu security
## team.
## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
## Uncomment the following two lines to add software from Canonical's
## 'partner' repository. This software is not part of Ubuntu, but is
## offered by Canonical and the respective vendors as a service to Ubuntu
## users.

deb http://archive.canonical.com/ubuntu gutsy partner
deb-src http://archive.canonical.com/ubuntu gutsy partner

deb http://archive.ubuntu.com/ubuntu/ gutsy main
deb http://archive.ubuntu.com/ubuntu/ gutsy main universe
deb http://archive.ubuntu.com/ubuntu/ gutsy main multiverse
deb http://archive.ubuntu.com/ubuntu/ gutsy main restricted

deb http://security.ubuntu.com/ubuntu/ gutsy-security universe main multiverse restricted
deb http://archive.ubuntu.com/ubuntu/ gutsy-proposed universe main multiverse restricted
deb http://archive.ubuntu.com/ubuntu/ gutsy-updates universe main multiverse restricted
deb http://www.megaware.ind.br/megalinux/apt megalinux main


deb http://security.ubuntu.com/ubuntu gutsy-security main restricted
deb-src http://security.ubuntu.com/ubuntu gutsy-security main restricted
deb http://security.ubuntu.com/ubuntu gutsy-security universe
deb-src http://security.ubuntu.com/ubuntu gutsy-security universe
deb http://security.ubuntu.com/ubuntu gutsy-security multiverse
deb-src http://security.ubuntu.com/ubuntu gutsy-security multiverse

substitui


#deb cdrom:[Ubuntu 8.04 _Hardy Heron_ - Release i386 (20080423)]/ hardy main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

deb http://br.archive.ubuntu.com/ubuntu/ hardy main restricted
deb-src http://br.archive.ubuntu.com/ubuntu/ hardy main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://br.archive.ubuntu.com/ubuntu/ hardy-updates main restricted
deb-src http://br.archive.ubuntu.com/ubuntu/ hardy-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## universe WILL NOT receive any review or updates from the Ubuntu security
## team.
deb http://br.archive.ubuntu.com/ubuntu/ hardy universe
deb-src http://br.archive.ubuntu.com/ubuntu/ hardy universe
deb http://br.archive.ubuntu.com/ubuntu/ hardy-updates universe
deb-src http://br.archive.ubuntu.com/ubuntu/ hardy-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://br.archive.ubuntu.com/ubuntu/ hardy multiverse
deb-src http://br.archive.ubuntu.com/ubuntu/ hardy multiverse
deb http://br.archive.ubuntu.com/ubuntu/ hardy-updates multiverse
deb-src http://br.archive.ubuntu.com/ubuntu/ hardy-updates multiverse

## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
# deb http://br.archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse
# deb-src http://br.archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository. This software is not part of Ubuntu, but is
## offered by Canonical and the respective vendors as a service to Ubuntu
## users.
# deb http://archive.canonical.com/ubuntu hardy partner
# deb-src http://archive.canonical.com/ubuntu hardy partner

deb http://security.ubuntu.com/ubuntu hardy-security main restricted
deb-src http://security.ubuntu.com/ubuntu hardy-security main restricted
deb http://security.ubuntu.com/ubuntu hardy-security universe
deb-src http://security.ubuntu.com/ubuntu hardy-security universe
deb http://security.ubuntu.com/ubuntu hardy-security multiverse
deb-src http://security.ubuntu.com/ubuntu hardy-security multiverse

## Medibuntu - Ubuntu 8.04 “hardy heron”
## Please report any bug on https://bugs.launchpad.net/medibuntu/
deb http://packages.medibuntu.org/ hardy free non-free
# deb-src http://packages.medibuntu.org/ hardy free non-actualizar

ainda não deu certo....
eu substitui....

voce deu apt-get update ??

qual versão do ubuntu voce usa e qual sua placa de video?

ubuntu 8,04 e nvidia geforce 7300 gs

tenat dar um apt-get install nvidia-glx-new

sem medibuntu:

#
# deb cdrom:[Ubuntu 8.04 _Hardy Heron_ - Release i386 (20080422.2)]/ hardy main restricted

# deb cdrom:[Ubuntu 8.04 _Hardy Heron_ - Release i386 (20080422.2)]/ hardy main restricted
# See http://help.ubuntu.com/community/UpgradeNotes for how to upgrade to
# newer versions of the distribution.

deb http://us.archive.ubuntu.com/ubuntu/ hardy main restricted

## Major bug fix updates produced after the final release of the
## distribution.
deb http://us.archive.ubuntu.com/ubuntu/ hardy-updates main restricted

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## universe WILL NOT receive any review or updates from the Ubuntu security
## team.
deb http://us.archive.ubuntu.com/ubuntu/ hardy universe
deb http://us.archive.ubuntu.com/ubuntu/ hardy-updates universe

## N.B. software from this repository is ENTIRELY UNSUPPORTED by the Ubuntu
## team, and may not be under a free licence. Please satisfy yourself as to
## your rights to use the software. Also, please note that software in
## multiverse WILL NOT receive any review or updates from the Ubuntu
## security team.
deb http://us.archive.ubuntu.com/ubuntu/ hardy multiverse
deb http://us.archive.ubuntu.com/ubuntu/ hardy-updates multiverse

## Uncomment the following two lines to add software from the 'backports'
## repository.
## N.B. software from this repository may not have been tested as
## extensively as that contained in the main release, although it includes
## newer versions of some applications which may provide useful features.
## Also, please note that software in backports WILL NOT receive any review
## or updates from the Ubuntu security team.
# deb http://us.archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse
# deb-src http://us.archive.ubuntu.com/ubuntu/ hardy-backports main restricted universe multiverse

## Uncomment the following two lines to add software from Canonical's
## 'partner' repository. This software is not part of Ubuntu, but is
## offered by Canonical and the respective vendors as a service to Ubuntu
## users.
# deb http://archive.canonical.com/ubuntu hardy partner
# deb-src http://archive.canonical.com/ubuntu hardy partner

deb http://security.ubuntu.com/ubuntu hardy-security main restricted
deb http://security.ubuntu.com/ubuntu hardy-security universe
deb http://security.ubuntu.com/ubuntu hardy-security multiverse

aptitude update

apt-get update

dai instala ele.