How to get rotating and/or rotfloat to work

Using LyX 1.6.5/MacTex-2009 my floating sideways figures only occupy half the page and the other half of the figure disappears off the left margin. I tried the rotfloat and rotating packages and they both give the same result.

The environment begins with \begin{sidewaysfigure}. The text is properly rotated but it just never gets past the half-way point of the page (along the short dimension in portrait).

Anyone have any ideas?

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This example is compilable and works as expected:

\documentclass[demo]{article}
\usepackage{rotating}
\begin{document}
\begin{sidewaysfigure}
\centering
\includegraphics[width=0.8\textwidth,height=0.5\textheight]{Test}
\caption{Test example}
\end{sidewaysfigure}
\end{document}


Perhaps do it like this or post some concrete code.

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You might also try isorot package, which worked for me better than rotating or pdflscape.

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