vb6 ADODB TSQL procedure call quit working after database migration

Question

This code was once working on sql server 2005. Now isolated in a visual basic 6 sub routine using ADODB to connect to a sql server 2008 database it throws an error saying:

"Login failed for user 'admin' "

I have since verified the connection string does work if i replace the body of this sub with the alternative code below this sub. When I run the small program with the button, it stops where it is marked below the asterisk line. Any ideas? thanks in advance.

Private Sub Command1_Click()

Dim cSQLConn As New ADODB.Connection
Dim cmdGetInvoices As New ADODB.Command
Dim myRs As New ADODB.Recordset
Dim dStartDateIn As Date
dStartDateIn = "2010/05/01"


cSQLConn.ConnectionString = "Provider=sqloledb;" _
         & "SERVER=NET-BRAIN;" _
         & "Database=DB_app;" _
         & "User Id=admin;" _
         & "Password=mudslinger;"

cSQLConn.Open

 cmdGetInvoices.CommandTimeout = 0


    sProc = "GetUnconvertedInvoices"
    'On Error GoTo GetUnconvertedInvoices_Err

    With cmdGetInvoices
        .CommandType = adCmdStoredProc
        .CommandText = "_sp_cwm5_GetUnCvtdInv"
        .Name = "_sp_cwm5_GetUnCvtdInv"
        Set oParm1 = .CreateParameter("@StartDate", adDate, adParamInput)
        .Parameters.Append oParm1
        oParm1.Value = dStartDateIn
        .ActiveConnection = cSQLConn

    End With

    With myRs
        .CursorLocation = adUseClient
        .LockType = adLockBatchOptimistic
        .CursorType = adOpenKeyset
        '.CursorType = adOpenStatic
        .CacheSize = 5000
        '***************************Debug stops here
        .Open cmdGetInvoices

    End With


    If myRs.State = adStateOpen Then
            Set GetUnconvertedInvoices = myRs
    Else
            Set GetUnconvertedInvoices = Nothing
    End If

End Sub

Here is the code which validates the connection string is working.

Dim cSQLConn As New ADODB.Connection
Dim cmdGetInvoices As New ADODB.Command
Dim myRs As New ADODB.Recordset

    cSQLConn.ConnectionString = "Provider=sqloledb;" _
             & "SERVER=NET-BRAIN;" _
             & "Database=DB_app;" _
             & "User Id=admin;" _
             & "Password=mudslinger;"
cSQLConn.Open

 cmdGetInvoices.CommandTimeout = 0


    sProc = "GetUnconvertedInvoices"


    With cmdGetInvoices
    .ActiveConnection = cSQLConn
    .CommandText = "SELECT top 5 * FROM tarInvoice;"
    .CommandType = adCmdText
    End With

    With myRs
        .CursorLocation = adUseClient
        .LockType = adLockBatchOptimistic
        '.CursorType = adOpenKeyset
        .CursorType = adOpenStatic
        '.CacheSize = 5000
        .Open cmdGetInvoices
    End With

    If myRs.EOF = False Then
        myRs.MoveFirst
        Do
            MsgBox "Record " & myRs.AbsolutePosition & " " & _
          myRs.Fields(0).Name & "=" & myRs.Fields(0) & " " & _
          myRs.Fields(1).Name & "=" & myRs.Fields(1)
          myRs.MoveNext
        Loop Until myRs.EOF = True
    End If

Answer 1

This probably shouldn't cause the error you're seeing, but according to http://msdn.microsoft.com/en-us/library/ms677593(VS.85).aspx:

"Only a setting of adOpenStatic is supported if the CursorLocation property is set to adUseClient. If an unsupported value is set, then no error will result; the closest supported CursorType will be used instead."

Answer 2

Turns out it was a linked database permissions error in sql server 2008. I had to delete the link and recreated it with a login/password.