You should install the latest version of Color Finesse, 2.1.11, as we've made changes in that area.
As far as Windows 7 support goes, we have not officially qualified CF under Window 7 yet. We're not aware of any problems, but we need to do testing with the official released version before claiming compatibility. Microsoft (and Apple) are well known for sneaking changes into final versions that aren't in the earlier "golden masters" and we've been burned that way before.
Bob Currier
Synthetic Aperture