<p>Hello. I had the same problem having just signed up to Virgin mobile broadband, but have (luckily) solved it (after a struggle). Thanks to Sakis.</p>
<p>What I have :  </p>
<ul>
<li>Virgin Mobile 3G monthly contract (UK).  </li>
<li>X220S Alcatel USB stick</li>
<li>Acer Aspire One Netbook (AOA 150-Bb)</li>
<li>Ubuntu 10.10 Netbook Edition</li>
</ul>
<p>What I did :</p>
<pre><code>sudo apt-get purge modemmanager
sudo reboot  # to make sure modemmanager is killed and gone
./sakis3g   # download from http://www.sakis3g.org/
</code></pre>
<p>APN : goto.virginmobile.uk<br>
User: user<br>
Password: anything  </p>
<p>Then the flashing green light should stop flashing and stay on - you are connected. In firefox untick 'offline' and it works despite Network Manager icon saying you don't have an internet connection!  See the forum and instructions on Sakis website.</p>
<p>Matthew</p>