Clear the cache table, browser cache .
Also disable the options in  http://yoursite.com?q=admin/settings/performance if it is your testing site
 delete from cache;
delete from cache_advcache_block;
delete from cache_block;
delete from cache_browse;
delete from cache_comment;
delete from cache_edusearch;
delete from cache_filter;
delete from cache_forum;
delete from cache_menu;
delete from cache_node;
delete from cache_page;
delete from cache_path;
delete from cache_search;
delete from cache_session;
delete from cache_taxonomy;
delete from cache_users;