TalkingSoft.com Forums: Videos on my pc are gray scale (black and white)!!! - TalkingSoft.com Forums

Hi i'm new around and i got a little prob on my pc. i formated my pc some time ago and they beggan 2 reinstall all the software i had on my pc. now i just discovered when i was trying 2 watch a dvd movie with PowerDVD that it was black and white, i then tried another movie and some of the videos on my hard drive and they where all grey scale what's going on and how can i solve this plz some one help me!!