I have a dell inspiron laptop. I have a couple movies that i am backing up and they are on my laptop as avi and mpg. I can watch both of them via either divx player or Windows Media Player. When I hook the laptop up to my TV, and play it, It is just a black screen. I can see the desktop on my TV, but the minute i start the playback of a movie, the window that is supposed to be the movie is just black. (I can still see the rest of the desktop in the TV when it's not in fullscreen mode) The sound works ok, this appears to be just a video problem, not a connection to my tv or anything else. I can still watch the movie on my laptop when it is connected to the TV and its has a black screen on it. Any ideas...?? Thanks!