I just purchased 2 Dell XPS laptops 1 for me and one for the wife. We will be teaming up and I wanted her to be able to stay in touch back home and allow myself to be online and surf the trucking sites at the same time.

First off I had an ATT air card installed and just activated it last week. So far it works fine as long as we are in an area with good cell coverage but drops out when we are in motion especially along the PA turnpike. My first question is their a device that will improve my laptops ability to stay connected while in motion (kinda like a cellular amplifier for a cell phone but designed for data transmission) for a laptop?

My second question is; Do you know how to network these 2 laptops together so I may get away with not activating another air card in her laptop? I tried the ad hoc network and even an ethernet wired connection but apparently I am in over my head. I read the wizards and instructions but the best I was able to get was a connection with limited connectivity.