Welcome to our community, Dr. Pruiett
The Snap to Fit option is only for initially snapping either:
1. The application inside the Captivate recording area - If
recording using Custom Size setting
2. The Captivate recording area around the application - If
recording using Application setting
You seem to be wanting what is offered by another option.
Click Edit > Preferences... > Recording node > Settings
node and note the setting labeled: Move new windows inside
recording area. My guess is that you will find this is alread
enabled, which will probably beg the question of why isn't
Captivate making this happen?
Well, as you have seen, the option doesn't work with all
windows. Perhaps the developer of the application is calling the
window in such a manner as Captivate doesn't see.
You may wish to report this as a possible bug to be
addressed. You do this using the Wish Form
Click
here to view the WishForm/Bug Reporting Form
Cheers... Rick