First of i would like to admit that my friend modded my gamerscore. My gamerscore was promptly reset back to zero which I understand completely. Now, some months later, my gamerscore keeps resetting on certain games. For example, I beat the entire Mass Effect 2 game twice and got the achievement for beating the game, but the other achievements that you get while beating the game reset. A more recent example, 2 weeks ago I bought the Godfather 2 and beat the campaign. I had the achievements for the game until today when I logged on they had disappeared. I called Xbox Live Support and the woman I talked to told me that she had no clue, and that I should post on the forum. Any thoughts on why my gamerscore keeps resetting?
Thank you for your help,