No ip logging

Turning register_globals=off has an effect on ip logging! It seams that ipadresses aren't logged anymore "(Host could not be resolved)"!  :-\
Is there a solution for this?

Many thanks in advance.

Solved!

mambook.php change line 202 to:
// IP
$ip = mosGetParam( $_SERVER, 'REMOTE_ADDR', '' );

Thanks.
It was on my list for fix but you were faster.