I just tried it via a Windows machine with the IE browser. The add links do show up now, but adding produces an error re the the Reg_ID field, which is the $db_key: though the record number is inserted automatically and seems to be right, upon hitting "add record" an error message results, claiming the field limit is exceeded.(And shows the text 'default' in the Reg_ID field.) The field limit is '5' and the Reg_ID in this case was 2.
-Brian
-Brian