[AccessD] A2K:Data Type Mismatch in expression

Hi Guys
This is basically the same question I asked the other day that Stuart and some others answered
This is basically the same code (that works elsewhere by the way) copied and pasted but with a slightly
different SQL.
I have tried to follow (as closely as possible) the syntax that Stuart recommended with the single
quotes and stuff, but I just cant get it right 

I am continually getting either "Data Type Mismatch in expression" or, depending on what I do or do not type
"No Value give for one or more parameters"  AAAAARRRRGGGHHHHH!!!!!

'+++++++++++++++++++++++++++++++++++++++++++++++++++++++
Dim selSQL As String
Dim rs As Object
Dim con As Object

Set rs = CreateObject("ADODB.Recordset")
Set con = Application.CurrentProject.Connection

selSQL = "SELECT tblStudents, tblStudents.StudentID " _
& "FROM tblStudents & "WHERE (((tblStudents.StudentID)='" & [Forms]![frmStudents]![txtStudentID] & "'));"

rs.Open selSQL, con, 1 ', 3 '<====================Debug fails here

    With rs
        MsgBox .RecordCount
        x = .RecordCount
    End With
'++++++++++++++++++++++++++++++++++++++++++++++++++++++