Run the installer and, later on, the actual program in Windows Vista or XP compatibility mode and you should be fine. You can set compatibility modes for an application by right-clicking on it and going to the "Properties" dialog.
Also, get and install the latest burn routines from the Magix support website to make burning work under Windows 7.
ralftaro... I tried all of those before I looked up this forum and I can't seem to get it to install... error message of:
The File 'C:\ProgramData\MAGIX\Movie_Edit_Pro_15_Plus\DVD\omkLink.bmp' could not be opened. Please check that your disc is not full and that you have access to the destination directory. The system cannot find the path specified.
I called support and they said that they'll have a patch out soon...