I'm helping my mom troubleshoot this problem so please bear with me... we tried to skype yday and it turns out the built-in mic on her 12"iBook is not working. I barely hear some faint static, but for the most part it was dead. I had her go to System Pref->Sound and test the mic and the mic level was not moving when she spoke. Does this mean the mic is dead?? or am I missing something? Is there a USB mic available that she can use? Please help!!!!