I have a 1 month old 17" MacBook Pro i5. At the first thime it worked about 5-6 hours with Wifi and half brightness but know I realized that this time is reduced. Do you know any program what can show me were goes my charge from the battery?
Well I think I figured It out. When I only watched TV the MBP switched to the NVIDIA 330M graphic card (I Don't know why). I have found a small program called gfxCardStatus wich can inform you about the video cards and you can choose manualy between them.