My problems is that having saved a Windows Live Movie Maker project, the video clips that I have trimmed a few seconds off at the beginning of the clip (start point) will pixelate when the project is saved as a Movie.  Those clips which have been trimmed at the end (end point) do not pixelate.  If I spit a clip then the beginning of the second half will pixelate too. I am using Version 2011, but have also tried the current  Version 2012. Computer Info :- Windows 7 Home Premium -Processor AMD Phenom IIX4 925 Processor 2.80GHT.  Dell Computers have changed the Video Card ATI Radeon HD5670, the Hard Drive, and they say, the Mother Board.  Version 2011 worked perfectly well until my system had to be rebooted as it would not start.  Dell have also uninstalled/reinstalled the operating system twice. Can any body please assist??