I've been using this burner with no problems for years on Windows 7. Yesterday I opened a saved title list and found it incomplete. There were 14 titles listed instead of the saved 28. I added additional titles to come up to the 28 and started editing. I got to title 14 and then when I tried to go to 15, it went back to title number 1. I tried previewing the end of the title and I got no response. I didn't know what to do so I uninstalled and reinstalled. My preferences were lost, but not the library. I don't know if the uninstall didn't work correctly or if my problem has been solved.