MiKTeX and proTeXt ⇒ Problem with fourier package and MikTex 2.9

[ivan_hr]

Hello everybody,

When I include the fourier package \usepackage{fourier} in my preamble I get the following error message:

!pdfTeX error: C:\Program Files\MiKTeX 2.9\miktex\bin\pdflatex.EXE (file fourie
r-mex): Font fourier-mex at 604 not found
==> Fatal error occurred, no output PDF file produced!

I'm using TeXworks editor. My colleague is using the very same MikTeX version (2.9) and same TeXworks editor and doesn't have any problems when she includes fourier package. We also tried running exactly the same code and it works on her compuer but not on mine. The only difference is that my operating system is Windows 7 and she uses Windows XP.

Does anyone know what might be the problem here and how to fix this problem?
Thank you in advance.