Youtube on BB 8520 Curve via WIFI Home Internet connection

Hello,
i'm a happy new user of a BB 8520.
Lucky I've now a keyboard to send easily SMS, a good agenda, contact overview.
It's a private BB, so no use in a company.

I'm very happy it's connecting to Internet via my home internet connection (WIFI).
Many mobile Internet sites work great, no any change i had to do.
But...Http://m.youtube.com is working but as soon as i click a clip, the BB jumps to Mediaplayer, and is waiting at 0:00 timeframe.

I'm sure it can work. How please ?

(i even switch the Brower to Firefow or Internet explorer instead of BB, but this is not helping)
(i even switch the 'going to WAP for streaming video' out or off but this is not helping)

Thx for help

Go to BB official site and download youtube player.

Rana