Im hoping its not just me or something i have taken, but is it now possible to see your game as you pass over them on your main screen.

It appears only to work on several games though not on them all why is that?

This is explained here:

http://www.chess.com/forum/view/community/new-features-on-chesscom---2102008

 On games where a new move has been made since the rollout of this new functionality you will be able to see a quick glance view of your games.

Very slick. Soon all your games will have this working.