1st time poster, long time reader

Anyways... i'm having some issues with a new Nova-S plus card, in windows 7 mce the external inputs (s-video and composite) arent recognized by mce so it will only allow me to set up the satalite feed - which also does not pick up a signal and is also useless! However when using the win7 program that came with the card the s-video input works but is black and white for some reason.
Is there some trick to getting this working properly? im scratching my head over this one!