I have a 42" lcd tv hookedup to my macbook via mini dvi to dvi adapter and dvi to hdmi cable. Along with the new apple bluetooth keyboard and a wireless mouse it makes for a great media set-up in my room.

Here is the problem: most of the time, when I load video such as youtube it makes my computer freeze and does not respond until I manually shut it down. I recently upgraded to Leopard but I had the same problem with Tiger. This only happens, however, when I have the macbook hooked up to my lcd tv. Any suggestions? I'm currently using Safari by the way, but I was using Firefox when I had Tiger.