a) how do you erase 100 emails at one time? Do I really have to select each one then trashcan them one at a time? b) what settings result in a longer battery life, its only lasting a couple hours right now. Or is that the max one might expect? c) mine connects fine at home (2wire), but at work it is having a hard time finding or locking onto the signal (whereas the laptop is immediate) even when battery is up.