Windows Media Player

[mike13]

I installed Vista on a second hard drive, now when I put a Video in the DVD player I get the following message "WINDOWS MEDIA PLAYER CANNOT PLAY THIS DVD BECAUSE IT IS NOT POSSIBLE TO TURN ON ANALOG COPY PROTECTION ON THE OUTPUT DISPLAY. TRY INSTALLING AN UPDATED DRIVER FOR YOUR VIDEO CARD" . Somehow I got another program called VLC Media Player installed, and that program DOES open and play the DVD, so there should not be a problem with the video card. Any help on getting WMP to open and play the DVD ? Many thanks, Mike