I have windows 7 (64-bit) on an hp pavilion g7-1075dx. Video chat will work for a few seconds, then my webcam shuts off and is no longer recognized by skype. I have the latest version of skype (220.127.116.11). There are no new updates available for my computer. Also, Ive checked on hp for an update on any drives an nothing. The video chat does work on ooVoo however. How can I fix this problem??