Hi Lew,
I am having the same problem with my quick time player. With "wmv" video file types it doesn't respond at all when I click "launch".
With the "avi" video/movie file type it responds and plays but there is no sound or video. Sometimes a pop-up says there is information missing and it probably will have problems, which it then does. Sometimes it says something like there is no compressor on quicktime and that it won't work.
Only "mov" and "mpg" file types have worked so far in watching video clips.
Does anyone have any suggestions for me to be able to watch movie and video? should I download another viewer software? Which one?
Thanks.