Ive seen people complain about it in the past, no clue why or how it happens.

Did you feed your computer after midnight?  

Evidently there are some new gremlins floating around this year.  Like Lisa, I have seen a post or two about the issue.  If it just happened once, load the information back in and keep your fingers and toes crossed.  If it is happening repeatedly, you might want to give support a call.

I am experiencing the same thing....was this issue ever resolved???