Update: I moved the file to my laptop and find it plays just fine using the default "Movie Player" which does not work on the desktop.  Both are running Ubuntu 7.04 although it was installed clean from a CD a few months back.  The desktop machine was upgraded from 
6.10 and has more software added to it.&nbsp; <br><br>Sure would like to learn how to track down this kind of issue.&nbsp; This is one of the few issues I have with the *nux methods.&nbsp; Programs often fail silently and since many operate using other software components it can be very difficult to find out what is happening.&nbsp; Certainly there are MANY benefits from this kind of architecture but this is a side effect that can be very troubling to the semi-learned.
<br clear="all"><br>-- <br>The nice part about being a pessimist is that you are constantly being either proven right or pleasantly surprised.<br>&nbsp;&nbsp;- George F. Will