External speaker output is gone?

[jeffreySs]

For some reason I've lost the sound to my external speakers. When I go to the control panel it only gives me the option for the internal speakers. I've been trying to think about any changes made and the only additional programs added were Skype, would that knock out me external speaker option?

 

[GGJstudios]

This might help:
Sound output missing in Snow Leopard 10.6.2?