last night I installed the updates for Linux Mint 17.1 from the updates manager. I hadn't installed them for a couple weeks but I was about to do something on the internet where I wanted to make sure I had the latest security updates. It told me it would install a new Nvidia driver (I think it was something like 367) as well as a couple other packages. I clicked okay, and then it downloaded and installed for about three minutes. When it was done, it said it was unable to update Firefox (this is a problem I have never had before). I closed it and my computer continued to work just fine.
However, when I tried to boot my computer this morning, it said it was missing a chipset and then just had a spinning loading cursor forever. I tried rebooting and it did the same thing.
Any idea on how to recover from this? I have a massive project I'm working on that I don't want to loose all my data from (although I do have a backup from about a week ago...)