Hang up in tutorial 4

When I first went through tutorial 4 I didn't notice that it said to click on the grass world (~page 10). Okay, went back and changed that, then on page 14, I got:

"Alice - error" dialog box
"Error changing gallery level home/local gallery"
It then wouldn't go any further. I had to force quit the program. I started up again, same problem. I tried to find a preference, but was unsuccessful. Deleted the program, then reinstalled it from the disk image, same problem. Now, it quits by itself when it gets to this point.

Any ideas of what I can do no. Working on a Mac OS 10.5.7, 2G RAM