Graphics, Figures & Tables ⇒ combination of lscape, center and longtable is not centered

[demac]

I am trying to get a centered, landscape lontable with the following code
Everything is correct except that the table is flushed-left on the rotated page, not centered.
Any ideas?

Thanks in advance
Jeff

Code: Select all

\begin{landscape}
\begin{center}
\smallertable
\begin{longtable}{llllrrrrrr}
First header....
\endfirsthead
Repeated header...
\endhead
lots of rows and columns
...
\end{longtable}
\end{center}
\end{landscape}