Excluding Category Not Working?

Anyone know why this would still be showing posts from cat ID 1 on my search results page? I also tried it w/o the single quotes around the -1

<?php 

                $paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
                                $term = get_term_by('slug','blog', 'post_tag');
				$term2 = get_term_by('slug','gallery', 'post_tag');
				$args=array(
  					'tag__not_in' => array($term->term_id, $term2->term_id),
                                        'category' => '-1',
  					'post_type' => 'post',
  					'post_status' => 'publish',
  					'caller_get_posts'=> 1,
  					'paged' => $paged
				);

                query_posts($args);

                if (have_posts()) : ?>