DjVu Browser Plug-in 6.1.1 for Mac OS X doesn't work on MacBook Pro running OS X Snow Leopard v10.6.8 / Safari 5.1.2:
A historical map should be displayed on this site. But only one page of related information is shown, followed by a note to install djvu plugin.
I tried 32 bit mode according to http://www.caminova.net/en/support/snow_leopard_err.aspx but no map is displayed.
there is a test, "Check to see if I have the DjVu." Click on the link and wait up to 30 seconds. If you do not have the DjVu installed, you will only see a blank page.
I've tried with and without activated plug-ins and with and without 32-bit enabled. In 32 bit mode, I get a dark screen with a test file as described above. In 64 bit mode, the test file as text.
On my iPhone 4, I get the testfile as a file. The filé can be opened in a djvu-app.