Ground.setPaint options list colors, not images

[KsMomof2]

I have had 2 students report this this week - when they select the ground and drag over a setPaint command, instead of seeing images (such as sand) they see only colors.

This is a new issue that we have not seen before this semester, though we have been using Alice for awhile. Anyone know what causes it and how to fix it?

Windows 7 (but, also a home Mac)
Alice 3.3

The students are working on the Tim the Wizard world in the Alice 3 in Action book.

Terri Kelly