I have had similar things happen on sites with video.
on one site another window opens and there is a player and it says initializing...
but nothing happens. the same site on windows just sits there too but with no initializing message.
it is a trick, you have to download the video using the link below the player.
i have had problems on other sites too, like game trailers, and i think it has something to do with the buffering of the video.
I have used a link from another site to a game trailers video and it worked, but from the game trailers site it did not work (i think it is to do with their stupid pop up window player advert thing).
if you download it it is fine.
so no real answer for you