I am running Ubuntu 10.4, in a HP Compaq and recently took Milenicom
Mobile wirless and the 760 dongle worked after I figured to plug it in
before booting, no extra drivers or anything needed, it just worked. At
first, for about a week, the connection would drop and would have to
click on the icon at top to restart the connection and sometimes would
have to right click, disable mobile broadband and then left click to
restart, but for the last couple of weeks it has been almost flawless,
btw, the service here is thru verizon towers. Milenciom (google it )
does not have contracts and your choice of a free dongle w/ 5 gig or $99
for the dongle and get 10 gigs. There is or was an unlimited for the
same price $59 p/mo. for all three plans, I believe the unlimited will
be back shortly.?

I can't remember if I had to install gppp on 9.10 It is required for
dial up and that is how g3 cards work. You must set up your connection
but should only have to select the service you have to make the thing
work. Sprint has a tutorial on their web site that should help you.
When setting up your service check the button that says something about
auto reconnect.

I would suggest upgrading to 10.04 that has better support for almost
everything. I have noticed an almost plug and play with all my hardware
that gets better with each upgrade. I also have a 760 on different
network, but have installed ubuntu on others equipment using different
dongles and they use the same procedure to connect to the net.