I often use Movie clips from various movies in teaching.  In the older version of Windows Moviemaker I had no problems.  Now after the first movie clip is played the screen goes black when it reaches the next clip.  If I go from full screen back to Windows Movie Maker the movie is visible and audible and has continued to play even though if full screen it can neither be heard or seen.  I have a Windows 8.1 operating system.  I ran the troubleshooting program and it says I have a compatibility problem but does not tell me with what.  How can I correct this issue?