no movie, only sound on tv

Hi Iam using a ati radeon 9800pro, and when I connect the pc to tv I only can hear sound and see my desktop and the player on my tv gives a black screen, but on my pc monitor its ok. so how can I get the movie on my tv screen?

[adicoto]

FIrst enable second monitor (TV-out) and after open BSPlayer. Never worked enable TV-out after BSPlayer started.