I bought the program using Paypal today and can't run it. I get an error message giving me 3 possible causes. Tried all the things suggested inc reboot. I'm not aware of any other user accounts running the program but i do have version 16 showing in my list of programs in Control Panel that refuses to uninstall. I've looked in my Windows Startup folder and can't see any references to jriver and I'm stuck. Can anyone help please?