METAFONT can not find d7seg.mf

Question

I write a simple file (T.tex):

% T.tex
\documentclass{paper}

\newfont{\dviiseg}{d7seg scaled 1200}

\begin{document}
    $\mbox{\dviiseg{c}}(c)$
\end{document}

then I put the d7seg.mf to the current directory. but miktex-mf.exe says:

Running miktex-mf.exe...

This is METAFONT, Version 2.718281 (MiKTeX 2.9)
! I can't find file `d7seg'.
 ... \mag:=magstep(1.0);nonstopmode;input d7seg

Please type another input file name

! Emergency stop.

 ... \mag:=magstep(1.0);nonstopmode;input d7seg

Transcript written on mfput.log.

My os is win7, and T.tex can not obtain output.

BTW: When I run it in my laptop(XP + MikTeX 2.7), T.tex can obtain output pdf file.

Answer 1

Yes look as if the current directory is not searched. Put your mf in a local texmf tree in fonts\source.