Snow Leopard tv display problem

Hi guys,

I just upgraded from tiger to snow leopard yesterday and today I am having problems with external display. I already had a set up to hook my macbook to my lcd tv and use XBMC, but now the videos I play feel choppy and the apple remote is also not working with it. It used to work fine on tiger. Please I need some solution.

also I tried to drag the safari window and play youtube videos on the TV and I can hear audio but I can't see the video.

Please help guys.......

 

I don't know why but I installed google chrome and dragged it to my tv monitor which is my external display and played youtube videos and it works fine. I think it is a safari problem? anyone had the same experience please share.