It is probably defaulting to "default avermedia webcam". In your video setup for messenger, make sure you choose "HP Webcam" as your default webcam.
As far as the battery goes, I have a similar tablet, the TX2500 and the 4 cell battery is abysmal. I have also bought seveal batteries - and returned several - from ebay. None met the specs that were stated.
I finally settled for the 12 cell battery that sticks out the back a little but actually goes under the tablet somewhat, however, I don't think it is available for the TX2 yet.
Beware of the batteries you get from ebay. I've had too many bad experiences with them.
David
http://i99.photobucket.com/albums/l299/xz550rj/HPMagicGiveaway.jpg
Woohoo! I won my Touchsmart!
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