I have waited hours and retried the application with the same result. I have attempted to re-install the application and I get the "Concurrent user..." message once the install begins. I can find the PDR13.exe file running in the windows Task Manager and the status is listed as "suspended". I can try to end the task and I get a message that access is denied.
How can I close an application which seems to be closed? How can I use an application that "thinks" that it is already open when it is not?
Is there a lock file or some other tool that is used to prevent concurrnet use of the program that may not have been properly cleared when the application closed suddenly?