The exact same thing used to happen to me on Fallout New Vegas. There is a fix for that and maybe.. just maybe it will work for Skyrim. What you had to do on NV was boot up the game and select to start a new game. Once the game started, in the opening cinematic you press the start button and then select load game. Load the save game that sticks from there and for some reason it worked. I don't know how or why, but this worked for me 100% of the time. Try this with Skyrim, select New Game and while you're watching the opening cinematic in the Wagon with the Storm Cloaks, hit the start button and try and load your save from inside the new game. If it happens to work, let us know because it might help someone else later on. Again, it's a shot in the dark but hopefully it will work like it did on New Vegas. Good luck man!