Problem with Dell Studio speakers.

Hi All,

I recently bought a Dell Studio 1535 Series Laptop. I am facing a wierd problem. The machine has Windows VISTA setup. I installed all the required drivers. I played some music and the laptop speakers were working just fine. Then, once I had connected my headphones to the laptop, I could listen to the music perfectly fine. However, now my laptop speakers aren't working. My headphones are not plugged, still they aren't working.

Has anyone faced the same problem?

Thanks,

~ Devang Shah