There is a problem in the latest Moodle Alpha version: Moodle 1.2 alpha (2004022200)
Parse error: parse error, unexpected T_VARIABLE in /home/www/moodle/lang/fr/moodle.php on line 157
I removed the French Lanuage and everything was OK.
Missing semicolon on line 156
Thanks, everybody, my stupid mistake 
Corrected now !
PS Thank you, Koen
Corrected now !
PS Thank you, Koen