I got situation here. I used pfd ver.4.40. But somehow I lost my installer and all with the key. Then I download the trial installer. Of course that is the newest one. After I finished install, I try to open my database that I created with pfd ver4.40, but it can't work. Can you help me? Is there a way I can convert my old database to the newest one? Because my record in my old database is very important. Thanks.