When using VoIP sound stops coming from the headset

[cloudropis]

Whenever I use a VoIP program, Skype, Teamspeak, Steam's built in voice chat, the sound of whatever is running doesn't come through the headset, but from the laptop's built-in speakers. I can hear every person I'm talking with through the headset, but Youtube videos, games' sound, music or anything else plays through the PC's speakers until I either close the call (Skype) or close the program altogether (Steam). This is very annoying, especially when playing.
PC is HP Pavillion dv6-2193el running Win 7, this is how my config looks like:
http/i61.tinypic.com/oi4xtc.png
Thanks in advance

 

[armapker]

Thats easy. Just right click on your headset and click "set as default device" and "set as default communication device"