This sounds like you have payroll accounts in the NV1 books that have double dashes or periods in the account name that the importer process properly.
For example, you may have an employee account named 01-REG and another employee account named 01-1-REG or 01.REG or 01.1.REG or some combination.
Go back into the NV1 books and run the procedure CHGACCT on the offending accounts to correct account names with just one dot as dash separator.
Regards,
Martin
