I've had issues with 1password for a long time and thought I'd give it another shot. I lost my data after an update and get this error now when I try to restore. I'm on a Mac with snow leopard.
Data Restoration Canceled
Error: Failed to restore '/Users/cin********/ws.agile.1Password/1Password 2011-09-05 171145 (2924 items).agilekeychain_backup', no encryption keys file found in the backup