When I had a problem with transitions I turned to this site and found others
are having other, apparently unresolved, problems also.
I will describe my situation and what I have so far discovered in the hope
that somebody at Microsoft will look at the issue and investigate it.
I am using Ultimate, on a computer whose experience rating is 4.3. The
version of WMM is 6.0 (Build 6000)
I use WMM to edit files from two primary sources. One source is MPG files
from BeyondTV. I have found no problems here; transitions work as expected.
However, when editing MPG files from a Canon DC220 video camera, transitions
are not published to "This Computer". Interestingly they do appear, in WMM,
if the button on the timeline is dragged through the transition area, but
they do not appear if the complete movie is viewed at normal speed.
Thanks for any comments or suggestions.