Just to add to Andrew's post, you should also determine whether all curreny service packs have been installed for the Novell Client32. You should also disable the 'File Caching' and 'File Commit' options on Novell Client32 in addition to 'Opportunistic Locking'. This would be the same whether Adagio or Accpac was in use.

Any of these settings enabled could corrupt data quite easily.