Inspiron-8100 / 1ghz / 256MB / Win-XP Pro / Nvida Gforce2

I used to play movies on the notebook and watch on TV. I had to reinstall XP-Pro a couple of days ago. Now, the output doesn't go to TV. I don't see the Twin View either. And, I have installed the latest Nvida driver.

Any help appreciated. Thanks ikn advance.

Siva