INSERT INTO tablename gives error

I have two out of five of my tables in a MS Access database not allowing an INSERT INTO statement.  It gives me the error:

 The Insert Into statement contains the following unknown field name:  CurrMonthName.

My SQL statement goes something like this:
"Insert Into DataTable (CurrMonthName,CurrYear) Values (@CurrMonthName,@CurrYear);

I've tried deleting the table and re-creating it.  I removed the CurrMonthName field in the statement so it's just asking for CurrYear, and I still get the same error, except of course it says the unknown field name = CurrYear.  I've also tried inserting the data directly from an Append Query in MS Access, and that won't work either.

Any ideas of what I'm doing wrong?