Graphics, Figures & Tables ⇒ Overfull \vbox with multirow

[gfink]

Hi,

I have a table with some matrices in them and in the last row i use multirow.
There is obviously enough space for the matrix, but i keep getting the "overfull \vbox". Any ideas on how to get rid of it? Is it also possible to have the matrix
vertically centered in the last column? Below is an example. Thanks!

Geoff

Code: Select all

\documentclass[letterpaper,12pt]{report}

\usepackage{multirow}

\begin{document}

 \begin{tabular}{|c|c|c|c|c|}
 \hline
 & \bf{a} & \bf{b} & \bf{c} & \bf{d}\\
 \hline
 $H_x$ &
 $\left[\begin{array}{ccc}0&1&0\\1&-4&1\\0&1&0\end{array}\right]$ &
 b &
 c &
 \
 \multirow{2}{*}{$\left[\begin{array}{ccc}0&1&0\\1&-4&1\\0&1&0\end{array}\right]$} \\
 $H_y$ &
 $\left[\begin{array}{ccc}0&1&0\\1&-4&1\\0&1&0\end{array}\right]$ &
 b &
 c & \\
 \hline
 \end{tabular}

\end{document}