Acer InviLink Nplify wireless technology 33Using a computer security lock 34Audio 35Adjusting the volume 35Acer PureZone 35Using the system utilities 36Acer Bio-Protection (for selected models) 36Acer GridVista (dual-display compatible) 37Launch Manager 38Norton Internet Security 38Frequently asked questions 40Requesting service 43International Travelers Warranty (ITW) 43Before you call 43Battery pack 44Battery pack characteristics 44Maximizing the battery's life 44Installing and removing the battery pack 45Charging the battery 46Checking the battery level 46Optimising battery life 46Battery-low warning 47Taking your notebook PC with you 48Disconnecting from the desktop 48Moving around 48Preparing the computer 48What to bring to meetings 49Taking the computer home 49Preparing the computer 49What to take with you 49Special considerations 50Setting up a home office 50Traveling with the computer 50Preparing the computer 50What to take with you 50Special considerations 51Traveling internationally with the computer 51Preparing the computer 51What to bring with you 51Special considerations 51Securing your computer 52Using a computer security lock 52Using passwords 52Entering passwords 53Setting passwords 53