WordPress MU

I upgraded to wpmu 1.2.1 and noticed there are two lines added in wp-config.php file, one with db_charset and one with db_collate. My DB charset is utf-8 and collate is utf8_unicode_ci. But when I set these 2 settings, my blog shows up strange characters. If I delete these 2 lines, it show up fine. Is it ok to go on without these 2 settings?

*chuckle* Didn't even know they were in there. :)

Here's mine. Working fine for me.

define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');

define('DB_CHARSET', 'utf8');
define('DB_COLLATE', '');

Yes, that was default setting and it also shows strange characters.