When opening some large Word files (48 pages with sections, landscape and portrait layout, tables, columns) Word is locking part way through opening document and we are then unable to edit, print or save as. The keyboard and mouse are not operational when this happens, and when closing down Word the message "this program is not responding" appears. We are on a network and the problem seems to be occuring with documents generated by one user. But not all documents generated by this one user are affected. This is my first posting to this forum, so if you require more information about our problem so you can possibly help us, please let me know.