Sound problem.

[matroska]

A few minutes ago I got this very strange problem. I usually switch between speakers and headphones (When I'm playing online games I use my headphones, but for everything else I use my speakers). Well today, after I un-plugged my headphones and plugged in my speakers, I couldn't hear anything. I thought it's only a problem with my speakers, so I plugged in my headphones but couldn't hear any sounds. I tried pretty much  everything I found on the internet, but nothing worked. So if you have any helpful suggestions, please post.

[Named]

That's headphones you bought, came with a dvd including drivers  ?
Maybe your motherboard drivers is not atualized, post here the headphone name.