thank you. markus!!
WP-SIMPLEVIEWER troubleshooting
I see the problem...it uses the URL variable again later on. Another test..leave line 211 in wp-simpleviewer.php as it is this time (or maybe change it back the original code):
$wp_simpleviewer_xmlfile_url = $wp_simpleviewer_options['images_url'].$wp_simpleviewer_
gallery_name.'/gallery.xml';
Now change line 214 from:
if ( !ini_get('allow_url_fopen') ) $wp_simpleviewer_xmlfile = $wp_simpleviewer_xmlfile_url;
to:
if ( !ini_get('allow_url_fopen') ) $wp_simpleviewer_xmlfile = $wp_simpleviewer_options['images_dir'].$wp_simpleviewer_
gallery_name.'/gallery.xml';