The specified ID file has been corrupted, or is not an ID file

What happened

You specified a User ID name in an User ID dialog box, but the User ID you specified is either corrupted or no longer a valid IBM® Lotus® Notes® User ID.

Note: Always keep a backup of your User ID on a diskette, particularly after each time you receive certificates allowing you access to additional Domino® servers.

What you can do

Use your operating system to replace the corrupted User ID with a copy of your backup User ID; or ask your Domino administrator for a new User ID. If you must get a new ID, you'll need to get new certificates as well. If you had any encryption keys from other Notes users and you still need them, ask those users to send them to you again.