Trying to re-install Pro tools Express

I had to re-install Windows 7 64 bit for reasons unrelated to Pro tools.



I set up the Ilok but when trying to download Pro tools, my activation code is rejected. The msg says I have already used the code.

What do I need to do to download my copy of Pro Tools?





Dell Inspiron, Windows 7 64 bit, M-Box High Performance 4x4, Pro Tools Express