Hello there! I have really messed up my Imac. I was on Skype talking with some friends, when my microphone suddenly started to sound strange, makeing noices like "bzzz" and "brrr" you get the point. So I was troubleshooting my external soundcard (siberia usb). And that was my issue the strange noices where made out of that. So I unplugged it and was going for the internal microphone but that microphone didnt wanna work. Then I plugged in the usb-soundcard again to check if that would work. Nope, and it said "mute" on it aswell, and it dosnt wanna unmute. So my question is can I unmute the internal microphone somehow from within my computer, or do I need to get my siberia soundcard to work again?