Help with new update and Backing up my ipad!

[thematrix225]

So I just downloaded the new iPad update, it all went well, however, right before the installation process it asked if I wanted to back up my data, and I clicked yes. However when is tried to back it up, my computer said there problem backing up and if I continued I would loose all of my data. Of course, not wanting to loose my data, I canceled and tried again however the same thing happened.

Also whenever I try to sync I my iPad to my computer It comes up with a message saying that the backup was corrupt or not compatible with this iPad.

I own a pc and I REALLY need some help.