black screen on the Tv (while using the Tv Out) any one?plz?

[Tamir]

I have GeForce 4 MX 440 and Windows XP sp1
wheni try to watch something I can see it in the computer screen but all i get in the Tv is black screen
how can I solve it? Plz (:

[carpa]

you have to set the tv-out to "main" or "primary" or "1"

[carpa]

you have to set the tv-out to "main" or "primary" or "1"