Can't activate Library

So…I have Cinematic Strings activated and it works in demo mode…However, when I click the activation button, everything seems to work great. I’m brought to the activation area where you type in your activation code. Everything seems great. Then I try to type in my activation code for CS2 and it won’t let me put anything in the windows…So…I’m not able to activate my library…sooo I have no idea what is wrong. Any input would be greatly appreciated. Also, it’s Cubase 8 pro, and yes it’s a legit copy.