SQL Syntax Error

Ok, first off I am using vb.net to access a local database in a very simple customer database program.  I started off using the oledb data adapter wizard and the query builder to make my statements.  The default Insert statement it provided was simple.  "INSERT INTO customertable(phone, first, last) VALUES(?,?,?)"  When I execute the app, I get an error "Syntax error in INSERT INTO statement"  So, after playing around with the query builder, I found that everything works just fine if I only insert one field.  So I decide to code the whole thing out to see if that works and it ends up doing the same thing.  It works fine for one field "INSERT INTO customertable(phone) VALUES(?)"  Even if I set "VALUES(1,2,3) it does the same thing.  It works fine with "VALUES(1)"  I've pasted my code below hoping someone could please help me out.  Thanks!

 

Jake

 

Private Sub btnAdd_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click

Dim sqlCustomerInsert, insPhone, insFirst, insLast As String
Dim icount As Integer
Dim con As New OleDb.OleDbConnection
Dim cmd As OleDb.OleDbCommand
Dim dsCustomerInsert As New DataSet
Dim drNewRow As DataRow
Dim daCustomerInsert As OleDb.OleDbDataAdapter

sqlCustomerInsert = "insert into CustomerTable(Phone, First) values('" & txtPhone.Text & "', '" & txtFirst.Text & "','" & txtLast.Text & "')"

con.ConnectionString = "Jet OLEDB:Global Partial Bulk Ops=2;Jet OLEDB:Registry Path=;Jet OLEDB:Database L" & _
"ocking Mode=1;Data Source=""C:\Databases\CustomerDB.mdb"";Jet OLEDB:Engine Type=5;" & _
"Provider=""Microsoft.Jet.OLEDB.4.0"";Jet OLEDB:System database=;Jet OLEDB:SFP=Fals" & _
"e;persist security info=False;Extended Properties=;Mode=Share Deny None;Jet OLED" & _
"B:Encrypt Database=False;Jet OLEDB:Create System Database=False;Jet OLEDB:Don't " & _
"Copy Locale on Compact=False;Jet OLEDB:Compact Without Replica Repair=False;User" & _
" ID=Admin;Jet OLEDB:Global Bulk Transactions=1"

daCustomerInsert = New OleDb.OleDbDataAdapter(sqlCustomerInsert, con)

Try
    con.Open()
    cmd = New OleDb.OleDbCommand(sqlCustomerInsert, con)
    icount = cmd.ExecuteNonQuery()
    MessageBox.Show(icount)
Catch ex As Exception
    MessageBox.Show(ex.Message)
End Try