Quote by xmagiceye: I thing it is a bug, because I've performed a search on the net and others had the same problem.
It's not a bug. Line 1795 in the lib-common.php of 1.4.1b1 is
Text Formatted Code
$logentry = str_replace( array( '<?', '?>' ), array( '(@', '@)' ),
$logentry );
which is perfectly valid PHP code.
As I said above, try another editor.
bye, Dirk