Alright, now that you're back I'll tell you what has got PC fans of the game hot and bothered. When the game came out, Ubisoft said that reports of DRM (Digital Rights Management) that mandated players keep the game connected to the internet at all times were false.
But, it seems like Ubisoft was wrong and or lying. They deleted the post saying you didn't need the connection and replaced it with one that admitted yes, you do have to be connected to the internet otherwise you can't play your awesome game. People got mad. People don't like this kind of DRM. It's a good protection against piracy but most gamers feel that it's a little too intrusive for their tastes. So steam went so far as to offer refunds to people who misinterpreted the DRM stance.
But now Ubisoft is looking to make amends. One of their forum managers responded to the crisis with this statement, "Our tech teams are working on a patch that should release in approximately two weeks that will eliminate the need for any online authentication. This development time is required as we are working to ensure that those who have already started the game, and who's progress is currently saved on our servers, will receive and save their game information locally. Once the patch is ready, players who already have the game will automatically receive the update on their next login and subsequent game sessions will be 100% offline." Looks like the gamers got their way, and made their point. The point not being that they don't like DRM, even though most of us don't, but it's the point not to lie to try and appease your fans.