I don't want to offend you by asking this question. However, if you received your activation key from TechSmith and inputted it into the program? And you typed your key into the program. What if anything happened after you did? It should have asked you if you wanted to register your key through TechSmith so that your key will never be lost. Did that occur? Did you register your key through TechSmith? You don't have to answer that question if you don't want to.
You can also contact TechSmith for support.
This is a Free Service...............
Submit a ticket