OS Version? Filemaker version?
User can not select contents of ANY field, copy and paste contents? Or just the (large - a paragraph or seven pages?) single field?
Fields can to set to be un-enterable on a layout. If they can edit the field, they should be able to copy paste. I would test with a simple app - WordPad, TextEdit, depending on OS.
Thanks... that's the issue, field not enterable. I'd prefer that a user could copy and paste without being able to edit, but that's probably not possible...?
OS: Windows XP, FM v. 12 advanced
Enter layout mode. Click the field to select it and then check field behavior settings to see if they have been set to deny access when in browse mode. In Filemaker 11 and newer, these settings are found in the Inspector.