MANAGER Password - ODBC Problem

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Business Works 2012 (sp 11) We use ODBC to pull customers information and insert it into a concrete batching application. We have used ODBC for several years. We created a new company. The password for the MANAGER user account that we have used for the other companies does not work for the new company, However the MANAGER user with no password does. Why would this happen? How can we make the password the same for all companies?