Hello, I don't really know if this is the right place to post this but i need some help. I want to buy a retail box of Parallels 5 for mac (its old) and i want to make sure the Serial number wasn't activated or used yet. I couldn't find how to check that, so i thought this would be the best place to ask help regarding this issue. So, if anyone know how or where i can check the SN of a parallels product to see if it was activated or not, please do help. Thank you.