LinuxQuestions.org - VLC won't show video but plays sound

after updating from these repositories

Code:





#### Debian Backports - http://backports.debian.org/

deb http://backports.debian.org/debian-backports squeeze-backports main



#### Debian Multimedia - http://www.debian-multimedia.org/

## Run this command: apt-get update && apt-get install debian-multimedia-keyring && apt-get update

deb http://www.debian-multimedia.org stable main non-free



#### Google Linux Software Repositories - http://www.google.com

## Run this command: wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -

deb http://dl.google.com/linux/deb/ stable non-free main



#### Google Linux Software Repositories (Testing) - http://www.google.com

## Run this command: wget -q -O - https://dl-ssl.google.com/linux/linux_signing_key.pub | apt-key add -

deb http://dl.google.com/linux/deb/ testing non-free



#### Skype - http://www.skype.com

## Run this command: gpg --keyserver pgp.mit.edu --recv-keys 0xd66b746e && gpg --export --armor 0xd66b746e | apt-key add -

deb http://download.skype.com/linux/repos/debian/ stable non-free



#### VirtualBox - http://www.virtualbox.org

## Run this command: wget -q http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc -O- | apt-key add -

deb http://download.virtualbox.org/virtualbox/debian squeeze contrib



#### Wine - http://www.winehq.org/

## Run this command: wget -O - http://www.lamaresh.net/apt/key.gpg | apt-key add -

vlc started to playing only the audio and not the video, i tried setting the video preferences but all video outputs didn't work. how do i get my video back