Try an older version of QuickTime for Windows, as the latest 7.6.4 update seems to have broken a number of apps. I've found quite a few recent reports of this with apps other than Color Finesse.
You can download older versions at:
http://www.oldapps.com/quicktime_player.php
We're looking into whether this is something we can fix in our code, or if we'll need to wait for another update from Apple.
Bob Currier
Synthetic Aperture