I´m using Magix Movie Edit Pro MX and have used for a rather long time but now a problem suddenlyu has occured. After I have created chapter markers, closed the program and reopen it, the chapter markers are still there BUT every second marker has no contents and does not appear in the chapter menu. If I delete these "corrupt" markers and create new ones, the same thing happenes again after closing and reopening the program. And the reason cannot be that I have created too many markers, as I have created 40 markers. The project is 1 hour, 20 minutes long. I have unistalled the program an reinstalled it but the problem is still there . I´m using Windows 7 Home Edition. What can be the problem?