You have the pretty urls turned on?
What happens if you add the format parameter to paginate_links?
'format' => '?page=%#%',
Full reference here http://codex.wordpress.org/Function_Reference/paginate_links
You have the pretty urls turned on?
What happens if you add the format parameter to paginate_links?
'format' => '?page=%#%',
Full reference here http://codex.wordpress.org/Function_Reference/paginate_links