Hi there guys,
My name is Mayan Viljoen & I am from South Africa. I am very new with Ubuntu and I don't understand why the Vodafone 3G modem HSDPA USB stick (model k3570-Z) which I recently bought should not like Ubuntu as much as it does Windows. I want to work on the Ubuntu side of my split hard drive rather than the Windows side. It is notoriously difficult to get connected to the net on the new Ubuntu with this 3G modem. Is it because it is really manufactured for Windows or is there another reason?
I works very well on the Windows Operating System, I must admit. It will only really connect approx. 1 out of approx. 8 odd times on the Ubuntu 10.8 Operating System, which is very annoying to me. What can be the reason for this? If it is that this modem was really made for Windows, what then is the best 3G modem and network to use with Ubuntu 10.8?
Can some clever person please assist me with these questions? I will be so grateful. Thank you.
Respectfully yours,
Mayan Viljoen

Do you have the usb-modeswitch package installed?

http://packages.ubuntu.com/maverick/usb-modeswitch

The modem dongle is initially seen as a CD which contains the Windows applications to allow it to function. Linux, as it stands, only sees the CD and not the modem hence andrewthomas mentioning the usbmodeswitch package.(Which can be downloaded via Synaptic) It flips the dongle into modem mode.
I managed to find other stuff from a site called Betavine which allowed you to download a set of open source vodaphone apps to run the dongle from Ubuntu and other Linuxes. (Unfortunately, having had a quick look at the site again, I can't find the downloads Rats! )

Play Bonny!