(A) If you don't see video in the bubble, you should click on the RED "Click Here" button in the center of the bubble, which will bring up the Flash settings dialog window.
(B) The Flash settings dialog window will have a dropdown list of all the available camera drivers your computer has. You should select the first one on the list and then click the Close button.

If you still don't see video in the bubble, repeat this selection process until you find the one that works. Once you find the one that works, your settings will be saved.

(A) If your video plays back without audio, you should click on the RED "No Sound" button in the top right area of the recording area. This will bring up a confirmation window asking that you want to check your audio settings.
(B) The Flash audio settings dialog window will have a dropdown list of all the available mircrophone drivers for your computer. You should select the first one on the list and then click the Close button and then try to record another video.

If your video again plays back without audio, repeat this selection process until you find the audio driver that works for your camera. Once you find the one that works, your settings will be saved.