I don't know how to restore the low battery warning popup balloon message in the system tray when the battery of my laptop is low. Also, the low battery warning beep is linked to the speakers and its volume is too low and is controlled by the volume setting of the speakers. I have an Acer Extensa 5420-5038 laptop with Vista 32 bit OS. I have Acer empowering technology. If I can get the popup balloon message back I would be happy.