I'm getting a couple of errors when playing MM9 on my 360. when i beat something in time ranking i get a (error: leaderboad was not updated) and when i view stats on leaderboards it get this message 80% of the time (you need to be signed into your xbox live account). Grrrr.... Has anyone else had this problem. I would love a fix for it but if not i'd like to know who else is having this problem.