Question : how do I Share the Internet on 2 comptuers both wireless no router ad hoc, using 1 qty AirCard USB 720

How do I share the Verizon Broadband wireless, I have 2 notebooks, both has WIFI enabled, customer don't want a Router.  The computer that has the Verizon Broadband Wireless card is running Vista, and the other pc is running XP Home.  I can't get the XP Home to get on the internet with ICS, what am I doing wrong, thanks

Answer : how do I Share the Internet on 2 comptuers both wireless no router ad hoc, using 1 qty AirCard USB 720

So you enabled ICS on the WiFi card on the Vista machine and turned off the firewalls on both notebooks, right?

Have you got rid of the VZaccess program and switched it to dial #777 direct?
VZaccess doesn't like to allow sharing the connection with ICS, if I recall.