I have a hyperlink field on a form in order to store links to electronic files on our LAN directory. When I try opening some files, I get an error message like "Unable to open "file location". Cannot open the specified file." Sometimes it will open a .doc, .docx, .pdf, etc., and sometimes it won't. The problem seems to occur on entries made in the last 12 months or so. Can anyone suggest a way to fix this? Many thanks in advance for the help.