I'm considering Autoviewer, probably the pro version, but if I can't even generate a gallery with Lightroom first, it would be a waste.

If I use only one photo the Autoviewer engine seems to work fine.  As soon as I try it with two photos, Lightroom crashes.

Postcarde and SimpleViewer engines seem to work fine.

This is an issue with both LR 2.2 and 2.3.

Any ideas?

I'm running a Mac Pro with OS X and 16GB RAM.