How do I format the text in a message box?

The code below builds a message string that is then feed to a message box if it contains information on an error. The message string is a dynamic list of units and the number of missing months of data each has in a SQL based data download. Everything works except the column of the number of missing months of data does not line up. I suspect there is nothing wrong with my logic, I just need to switch the text in the message box to a non-proportionally spaced font or use some other technique to get it to line up. I'm brain dead at this point. Help!

' Create data integrity check results message.
    dblRow = 6
    strDICResults = "The following units are missing data." & vbCrLf & vbCrLf & "Unit           Months Of Missing Data" & vbCrLf
    With Worksheets("Input")
        Do
            If .Cells(dblRow, 9).Value <> 0 Then
                strDICResults = strDICResults _
                    & vbCrLf _
                    & .Cells(dblRow, 4).Value _
                    & String(25 - Len(.Cells(dblRow, 4).Value), ".") _
                    & .Cells(dblRow, 9).Value
            End If
            dblRow = dblRow + 1
        Loop While Len(.Cells(dblRow, 4).Value) > 0
    End With
    strDICResults = strDICResults & vbCrLf & vbCrLf & "Do you wish to proceed anyway?"
    
    ' Display data integrity check results message.
    If Len(strDICResults) > 77 Then
        vntResponse = MsgBox(strDICResults, vbYesNo + vbCritical, "Error Message")
    End If
    If vntResponse = 7 Then GoTo Errorhandler1a