>I'm looking for a third-party control that will act as a thumbnail browser.

http://www.leadtools.com (with VFoxPro samples and docs)

>I've tried the Eastman/Wang/Imaging for Windows thumbnail browser control, but get nothing but GPFs whenever I run it. If anyone's used it, I'd love to hear from you.

This has the obvious advantage of being pre-installed on most Windows.

bye