Not sure if everyone is aware of this but one point that is not explicitly mentioned in any of the previous reports/comments is that when the internal microphone is "not working" in Skype, the application is actually receiving its audio input from the external microphone socket.
So anyone who just wants a workaround just needs to plug an external mic. into the ping 3.5mm socket.
Workaround
Not sure if everyone is aware of this but one point that is not explicitly mentioned in any of the previous reports/comments is that when the internal microphone is "not working" in Skype, the application is actually receiving its audio input from the external microphone socket.
So anyone who just wants a workaround just needs to plug an external mic. into the ping 3.5mm socket.