MiKTeX and proTeXt ⇒ MetaPost refuses to compile Labels

[eilonsolan]

Hello,

I have a new laptop and installed MiKTeX 2.9 on it. MetaPost refuses to compile all MP files that I created on my old machine. For example, the following file:

Code: Select all

verbatimtex \documentclass{article}\begin{document} etex    
beginfig(1);
z1=(0,0);
z2=(10mm,10mm);
drawarrow(z1--z2);
label.ulft(btex $A$ etex, .5[z1,z2]);
endfig;
bye

produces the error

Code: Select all

!Unable to make mpx file
l.8 label.ulft(btex
                    $A$ etex, .5[z1,z2]);

I guess that something was not installed properly. Any idea what I should do?

Eilon