1) Has anyone noticed that when they use video calling and plug in some ear phones, the microphone doesn't seem to work as well? Has anyone ever tried earphones with a built in microphone? does this seem to help? 2) Does anyone know how to set a default application for a particular file? I have alot of comics, and I have a comic book viewer, however, I have to open all my .cbr files directly from the view. When I open the file from the 'file manager' i keep on getting a message that indicates that no application exists to open the file. how to remedy? thanks all.