Need some help with my microphone - Randomly stopped working!

[thatman1]

I turn on my computer and my microphone randomly stopped working. When i join a skype call all they hear is very loud static. I have tried differnt mic on my computer still same issue, plus i have tryed my main mic on my laptop and it works fine. I have un-installed all audio drivers and reinstalled them, still no luck. I have also bough a brand new audiocard and installed it with the correct drivers and it still does not work. I have tried nearly everything except for replacing my motherboard, if anyone knows anything about this issue could you please respond would be great if i could fix.