MPSAN said:
Thank you all. We do have Snagit but have NEVER had any luck capturing a scrolling screen! I had thought that Duckcapture would also let you crop the captured image. Perhaps I can just try it.
Scrolling window capture works just fine for me under Win10/64.
I use that feature nearly every day.
Here's a tutorial (for version 13):
Scrolling Capture

What version of Snagit do you have?
v13 is the only one fully optimized for/compatible with Win10.
(I actually prefer the UI/UX for v12, so I have not yet updated to v13 on my two Win7 boxes.)

Techsmith offers terrific support.
If you have issues with the program, I suggest opening a support ticket.
Since you're already paying for the program, you have nothing to lose.

Cheers,
MM