Hi, i use texniccentre. When in \mdef environment i write

\begin{mdef}\label{a}
\begin{cnd} \label{b}
\begin{eqnarray} \label{c1}
\end{eqnarray}
then
\begin{eqnarray} \label{c2}
\end{eqnarray}
\end{cnd}
\end{mdef}

\ref{c1}
\ref{c2}

and then when I compile it into a .ps, I get for the (\ref{c2}) (4.2),
as it should be, and for the (\ref{4.1}) - (4.0) while it should be
(4.1). Any suggestions? Thanks