I also had this problem. At first I couldn't get to the persistence setting; the program would only give me a driver error. I usually don't overwrite the ini file on upgrade install to keep my settings. I had to backup the ini file, install with overwriting, and then I could get to the settings. Disabled the persistence, installed driver, enabled persistence, and that worked. replaced the new ini file with my old one and everything is working fine. Thank you for a wonderful program.