I am using Windows Live Movie Maker 2.6 running in Windows 7. I have found that when I try to save my completed movie "For high-definition display" it will not be saved. The saving process stops sometimes at 13%, 27% and even 99%. My computer freezes completely and I have to switch it off and on again manually. However, it will save in "For computer" setting, with no difficulty. I have noticed it only when I try to save MOV video clips. There is no problem when I save WMV video clips. Is this the key to the problem?