VB2005 modifing Access 2003 with Update command error

[tbo]

The code below works fine to update my database by adding rows of data to my dataTable.

However when I use the same commands (changing the names of database, datatable and rows) with another database, I get an error on the following:
dataAdapter.Update(myDataTable)
that says "Syntax error in INSERT INTO statement."

I looked at all the field settings and the database properties I could find...
I even re-created the database from scratch to no avail.

The only thing I know is that the working database is a couple of years old...

thanks
Actual VB 2005 code below:

Dim connectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=MAGACITIES.MDB"

Dim SQLstring As String
SQLstring = "SELECT * FROM Cities"

Dim dataAdapter As New OleDb.OleDbDataAdapter(SQLstring, connectionString)

Dim commandbuilder As New OleDb.OleDbCommandBuilder(dataAdapter)

myDataTable.Rows.Add()

myDataTable.Rows(myDataTable.Rows.Count - 1)("city") = TextBox1.Text
myDataTable.Rows(myDataTable.Rows.Count - 1)("country") = TextBox2.Text
myDataTable.Rows(myDataTable.Rows.Count - 1)("pop2005") = TextBox3.Text
myDataTable.Rows(myDataTable.Rows.Count - 1)("pop2015") = TextBox4.Text

dataAdapter.Update(myDataTable)

dataAdapter.Dispose()

[MMcCarthy]

I'm moving this question to the Visual Basic forum where I think it will get better attention.

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