Thanks to those members who responded to my queries re above. Much appreciated. Once I pulled iMovie 3 out of the folder and got rid of the "3" (including the heading on the icon in the dock) the upgrade was able to proceed. Subsequently, I have installed 10.2.4 and so far, so good. Toast 5.2. burnt a backup of the 10.2.4 installer OK and iMovie 3 seems to have shed its tardiness. The Ken Burns Effect is responding OK. However, at this early stage I am not getting too cocky as I have not had time to test everything out eg sound sync and exporting from iMovie to iDVD. The aftermath of many attempts to install the iMovie upgrade finds me with a copy of the iMovie 3.0.1 Application in amongst the features that appear in the first window that appears after you first click onto your HD. When I attempt to trash it, it tells me I can't as it belongs to "root". Someone has currently borrowed my "Little Mac OS X " book and I wonder if a List member could provide me with short details of the path I need to go down to fix up this bit of housekeeping? When you highlighted a Clip in iMovie 2 it was yellow, now with iMovie 3 it is blue. I prefer the former........is there any way to alter the colour? Thanks, Ian Tucker.