We're getting a couple emails saying the high scores and leaderboards on Xbox Live have been reset. There are dozens of posts about it on the Xbox forums, too. I can't reach any Microsoft PR folks for comments about why this might have happened since it's a holiday. I wonder if this had anything to do with the "TrueSkill" matchmaking service Major Nelson mentioned on his blog yesterday.

Update: Major Nelson addresses the issue on his blog and says they identified the issue and fixed it. All stats have been restored, which bums me out because I was the Joust champ for one brief moment.

Leaderboard reset?? [Xbox.com Forum]