text: whenever i try watching a vedio a green screen comes up but i can hear the audio?   it sounds like you need to install the correct video codec for the video you are trying to watch.  you can determine which codec you need by using a program like the gspot codec information appliance : http://www.headbands.com/gspot/  furthermore, i would recommend installing a codec pack from the following website : http://mirror2.edskes.com/