[tex-live] Paper size calibration problem

[Geoff Russell]

Hi,

Have I missed some calibration step? 

The file below gives
me actual textwidth of about 140mm not 150mm.

Cheers,
Geoff Russell

P.S. Karl if you read this, the Tex-Live install worked fine on
my de-hacked system. Thanks.

\documentclass[pdflatex]{article}
\usepackage[a4paper,left=3cm,textwidth=150mm,height=250mm]{geometry}

\begin{document}
This is some text.
This is some text.
This is some text.
This is some text.
This is some text.
This is some text.
This is some text.
This is some text.
This is some text.
This is some text.
This is some text.
This is some text.
This is some text.
This is some text.
This is some text.
\end{document}