[support] Access error in Views (D6.3)

I created a very simple Views page list of Books on my site (Filter: Book Depth = 1)--an index of books. I want it to be visible to everyone. Views>> Access is set to "unrestricted." Permissions >> Access All Views is checked for all roles, including anonymous. And yet it is visible to all registered users, but NOT to anonymous users (who get only a white page).

Can anyone imagine some other permission feature I have overlooked? Or is this a bug? If it's a bug, can anyone tell me if there is a way to hack a permission override for a single URL-aliased page or Views-page?

Steve Hays Ohio University