I was online playing batman today and then a message came up stating that i cant have 2 accounts open at the same time and that i would be logged out. well it logged me out automatically, and when i went to log in it said i needed to change my gamertag name. i called customer support and they didnt have any info as to why i had to change it. they told me to come and ask on the forums. i was wondering what the reasoning behind me having to change my name was for. any help would be appreciated. i received no email with an explanation either.