I have a Asus UX32V, and there's a couple problems with the audio. Normally, it works fine, but when I plug in headphones, the built in speaker stops working. This is really annoying for talking because it creates a lot of echo if I don't use headphones. The headphones work just fine, but they don't show up in the audio devices menu. The speaker is the only option there. How can I fix this so I can use the headphones and my laptop's built in mic at the same time? Thanks!