Hi David,
The blank screen was occurring when I go to dashboard>media>assistant. It is where I have been bulk editing media information.
I have since deleted and reinstalled the plugin and am now gettting:
Fatal error: Allowed memory size of 134217728 bytes exhausted (tried to allocate 2097152 bytes) in /home/steff169/public_html/www.steffichfineart.ca/build/wp-includes/taxonomy.php on line 837
I appreciate your time and effort.
John