overlays and align environment

Hello,

I'm trying to use the align environment to sequentially display a set of
aligned equations.  It seems to work if I don't use alignment characters
"&" but it fails otherwise.  i.e.,

\overlays{3}{
\begin{slide}{title}
\begin{align*}
a=b\\
\FromSlide{2}
c=d\\
\FromSlide{3}
e=f
\end{align*}
\end{slide}}

works fine, but

\overlays{3}{
\begin{slide}{title}
\begin{align*}
a &=b\\
\FromSlide{2}
c &=d\\
\FromSlide{3}
e &=f
\end{align*}
\end{slide}}

doesn't work correctly.  It just puts everything on all overlays.


					Any ideas?

						Ryan



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