Hello, I have windows 10 and just downloaded the free version of Movie maker 10 from the microsoft website. I added picture, then music. I tried to change the duration as it was set to 5 secs. Same as the old version. Tried to change to 3216 secs however which is the lengnth of the music, but no matter what duration i try to change it limits it at a maximum of 1200 secs (20 mins) What ever number i type in above 1200 seconds it reverts to 1200 maximum HELP please?