Migration problem with account - contact associations

Migration problem with account - contact associations

When I ran the import wizard the first time it presented me with option to make the association of inbound contacts to their respective accounts/companies.  It also presented me with the option to deduplicate.

I had to undo the import due to issues and eventually I deleted EVERYTHING from contacts, accounts and potentials.  Now it does not present the option to map the "Account Name"    It simply is not on the map.  Also, the deduplication option is gone.

Why is this and how can I fix it?

John Tytus