There is a 10 point (1 upvote) discrepancy between the dialog box that is shown when I mouseover my name and the reputation page in my profile. I've never seen it before today. I did wait about half an hour to see if it was a caching issue but it doesn't appear to be. I also logged out and back in with no change.
Screenshot below to illustrate what I see.
The counts were off by 10 until the end of the day. Then when rep for the day was reset to zero it seemed to clear up as the count for today is correct.