having problems using magyar babel package with amsthm package

Binary package hint: texlive-latex-base

If i try to compile the following code:
=== CODE ===
\documentclass[a4paper]{article}
\usepackage[utf8x]{inputenc}
\usepackage[magyar]{babel}
\usepackage[T1]{fontenc}
\usepackage{amsthm}
\theoremstyle{plain} \newtheorem{something}{Something}
...
\begin{something}
Azt mondjuk, hogy az akármi páratlan, ha bla bla bla.
\end{something}
...
=== CODE ===
i got the following error:

! LaTeX Error: Something's wrong--perhaps a missing \item.

See the LaTeX manual or LaTeX Companion for explanation.
Type H <return> for immediate help.
 ...

l.68 A
      zt mondjuk, hogy az akármi páros, ha bla bla bla.

=== CODE ===
Without the "magyar" babel package everything works fine.

Additional info:
=== CODE ===
pali@a-node:~/Documents/bme/matek$ lsb_release -rd
Description: Ubuntu 8.04.1
Release: 8.04
pali@a-node:~/Documents/bme/matek$ apt-cache policy texlive-latex-base
texlive-latex-base:
  Installed: 2007-13
  Candidate: 2007-13
  Version table:
 *** 2007-13 0
        500 http://hu.archive.ubuntu.com hardy/main Packages
        100 /var/lib/dpkg/status
=== CODE ===

Greetings
Pál Bőle