Hi tgordon
Welcome to the eForum
it is always good to see new faces on here.
This does sound more of an issue with the laptop that you have. As the SIM card is not locked to the USB dongle.
The only thing that I can suggest here is to pop into your local Vodafone Store to pick up a new SIM card to make sure, there isn't a fault that the laptop is picking on.
Other than that I would seek some advise from where you purchased this laptop from.
Martin
eForum Team