> Am I missing something?
Use \twocolumn. See docs and below.
-Hendri.
------
\begin{slide}{test}
\twocolumn{
\onslide+{1}{This text is active on the first overlay.}
\onslide+{2}{This text is active on the second overlay.}
}{
This text is in the minipage to the right.
}
\end{slide}
