Invalid Argument supplied for foreach()….

I’m still getting this warning message in WP 1.02. I also got it in 1.01. I think it’s related to
some info that WP is assuming is present. I only get it when I click on the main “Edit” button.
Warning: Invalid argument supplied for foreach() in /wordpress/wp-blog-header.php on line 351
I’m running PHP 4.33. FreeBSD. MySQL 4.x.