Trouble resetting connection string in Access 2010

New to Access 2010. The following VBA code when run doesn't reset the connection string as expected. I'm pretty sure this used 开发者_运维问答to work. What's wrong?

CurrentDb.TableDefs("AccountNumber").Connect = "ODBC;Description=NativeClient;DRIVER=SQL Native Client;SERVER=server1;DATABASE=Expense;Trusted_Connection=Yes"
CurrentDb.TableDefs("AccountNumber").RefreshLink

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I am not sure about that connection string. Which version of SQL Server are you using? You might like to try a connection string from http://www.connectionstrings.com/sql-server-2008#p3, for example, this works for me.

scn = "Driver={SQL Server Native Client 10.0};" & _
"Server=ServerName; Database=test;Trusted_Connection=yes;"
With CurrentDb
     .TableDefs(sLocalName).Connect = scn
     .TableDefs(sLocalName).RefreshLink
End with