about a year ago I bought assasin's creed 2 for pc, only to find out it didn't run on my computer at the time. for collage, I recently bought a laptop that can run it prefectly (i checked using a program called 'Can I Run It' and it goes way beyond what is nessacary.). When I go to type in the registration key i find out I can't use a binding key more then once. Can anyone help in my delema? Or will i have to buy a new product key? (something i won't do).