How to Show all posts WordPress

I was surfing my Moblog archive and I noticed it was showing pagination.

Use the query_posts function just before the Loop.

Show All Posts

1	query_posts( 'posts_per_page=-1')

<?php

// Force only to show all posts for my Category 41 (Moblog)

if(in_category(41)){ query_posts( 'posts_per_page=-1&cat=41' ); }

if (have_posts()) : while (have_posts()) : the_post();