Monitor Won't Display Video, Not codec problem

[MSD]

Hello,

I have a gateway laptop that I run lid closed with a 22" Gateway wide screen monitor. I installed the klmcodec340 pack on it a while back to be able to watch avi's and what not. However the widescreen monitor still won't display video but when I open the lid on the laptop, that screen will display the video while the monitor won't even when it is set to duplicate the screen. Any suggestions?

Thanks!

 

[Nodsu]

By "video", do you mean the actual video content inside a media player or display in general as in the desktop background, applications etc?

 

[MSD]

When I play a video file, wma, avi, mp4, etc it will play the audio to the file on my big monitor but it will not play the video to accompany it. the screen just stays black inside of the video player window.

 

[Nodsu]

You need to disable the use of overlays in your video player.