MySQLDriverCS

I have written a program that seems to work properly on my office computer I connect to the data base Insert, Delete and update without a problem.  But when I installed on lab computers it appears that the connectins fails.  I kept getting errors saying that there was an excption error and the program needed to close.  I tride updateing all the 1.1 and 2.0 net.Frame componets.  No success.  I then installed visual studio 2005 on the lab computer and I get an error at the command line com.open().  I do not know what exception is beeing thrown. But I can't step beyond that point.  My two office computers work great.  Only when I install on a lab computer.
I'm assuming this may be a driver issue but not forsure im using MySQLDriverCS 3.51.  The code is listed below.

thanks
     Dave.


                MySQLConnection con;
                con = new MySQLConnection(new MySQLConnectionString
                          ("hundredacrewood", "WTA", "WTA", "123456").AsString);

                con.Open();

                sql =
                    "INSERT INTO main_userslogedin ("
                        + "UAN, "
                        + "ULN, "
                        + "RD, "
                        + "CN, "
                        + "ULAT) "
                        + "Values ('" + UAN + "', '" + UN+ "', '" + RN + "', '"
                        + WS  + "', '" + ULAT + "');";

                MySQLCommand cmd = new MySQLCommand(sql, con);
                cmd.ExecuteNonQuery();
                con.Close();
             }
            catch (MySQLDriverCS.MySQLException ex)
            {
                RTB_SQL.Text = ex.Message.ToString()+ RTB_SQL.Text;
            }