Hi,

I have had a vz modem card for some time now and it worked fine. However my employer upgraded from a PC5750 device to the new PC770 device.

When I plug the old device (now deactivated) it shows and use to work fine.

When I plug the new device in Ubuntu does not pick it up and show it in the networking options.

I use to see it in the upper right where I would select my wireless networks.

I do get a green light on the card so I know its powered.

So what do I need to do to get my Laptop to see the new card?

uname -a Linux mylt 2.6.32-32-generic #62-Ubuntu SMP Wed Apr 20 21:54:21 UTC 2011 i686 GNU/Linux

Hi! It's very likely that those cards use different drivers. First of all I would recommend running 'lspci' or 'lsusb' (depending on the bus it's connected to) to list devices and check the corresponding chipset of the modem card.
With that information, you should be able to determine which driver you need to make it work properly (if exists). The LQ Hardware Compatibility List looks like a nice place to start