Hi, I installed my version of TI 2009 a few weeks ago. When I installed I had a problem with a key that did not work. I got a new key sent that did work. When I attempt to install the Build 9646 again I have the same problem with the key. What is going on? Do I have to request a new key every time a new build is released? How do I get it to install so its not a trial version using the key I have?