'posts_per_page=-1' problem in query_posts()

Hi,

I want to get all posts in a category. To do this, I use the following functions but it is a white page.

$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$counter = 1000;
$args= array(
	  'cat' => '1',
	  'paged' => $paged,
	  'showpost' => '1000',
	  'posts_per_page' => $counter
	 );
query_posts($args);

this was working fine two days ago but now it not working. So I tried the following code and I got the same error.

query_posts( array ( 'category_name' => 'my-category-slug', 'posts_per_page' => -1 ) );
or
query_posts( array ( 'cat' => 1, 'posts_per_page' => -1 ) );

if posts_per_page value is more than the number of posts, is the same problem.

The following code works fine but paging is.I don’t want paging.

$counter = 100;
$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
$args= array(
	'cat' => '1',
	'showposts' => '100',
	'paged' => $paged
);
query_posts($args);

Can you help for the problem ?

[No bumping. If it’s that urgent, consider hiring someone.]