Possible problem with Tutorial file?

Hello. As a new user, I am working my way through the tutorial, which appears to have images throughout. However, all of these images are highly magnified, pixelated white rectangles with the upper right corner folded down. Is there something I can reset or try for troubleshooting? Thank you.

That’s an odd one. First thing to try is closing the project and trashing it in Windows Explorer, then creating a new copy by choosing “Interactive Tutorial” again from the Getting Started category in the New Project window (or via Help > Interactive Tutorial).