Unexpected Error; Quitting

I am trying to open gINT on my work computer.  When I try to open it, I get the message of "unexpected error; quitting".  I have tried to reinstall the program, make changes to the program in control panel, repair in control panel, and run the program as an administrator.  None of these solutions have worked for me.  Changing and repairing lead to the same error as when I try to open the file.