Live 7 Stopped Working, Wont Detect License Code

[CuBuLo]

I recently sent my MacBook Pro to get repaired, and when it came back all my software was still installed, but when I opened Live 7 it went to the box asking me for my serial code. I found my original code and entered it but it's acting like a new copy of Live and it wont go through, saying i've already used the code. I do need to get it back up and running again for some shows relatively soon. How should I go about getting my license to work again?

[chapelier fou]

http://www.ableton.com/unlock