BUG: can't set margins

[Kevin S. Van Horn]

I just installed LyX 1.1.6fix1, and now I have lost the ability to set
margins for a document.  I go into Layout->Document->Paper and set the
margins (top, bottom, left, right), but this has absolutely no effect on
the output produced.  I checked the LaTeX output exported, and there's
absolutely nothing in it to set margins.