Bluetooth Headset not working under safari?

[Salas2007]

my motorola h9 works great with itunes/quicktime, but when watching a video in youtupe our listening to anything through safari i won't get any sound .
The computer doesn't even use the built-in speakers it setup to the headset. No sound at all on Safari.
i did some recearch and found software called Airfoil that send the audio from Safari to the headset and it worked! BUT there is a couple seconds time difference between the sound and picture! so that didn't hep!

I'm trying to figure what the story behind Safari! am i using it in different computer
does it have something to do with the features of my bluetooth headset?

Any help from you guys would be VERY appreciated?

"Macbook Aluminum Mac OS X (10.5.6)"

 

[BlueRevolution]

Is the output device set properly in the Sound preference pane?

 

[Salas2007]

Is the output device set properly in the Sound preference pane?

if you mean have i chose the headset as an output device? the answer is yes.
But there is no other settings under the sound preference i can chose from.

 

[BlueRevolution]

Then you've got me.