dealing with Serialport calls from other forms

[Robbo99]

Hi
I'm using VB.NET 2005 trying to create a options form that lets you select the serial port to use I'm using:

Sub GetSerialPortNames()
        ' Show all available COM ports.
        For Each sp As String In My.Computer.Ports.SerialPortNames
            Serial_list.Items.Add(sp)
        Next
    End Sub

to create a list of ports this works then using

  Private Sub btnConnect_Click( _
         ByVal sender As System.Object, _
         ByVal e As System.EventArgs) _
         Handles btnConnect.Click

        If SerialPort1.IsOpen Then
            SerialPort1.Close()
        End If

        Try
            With SerialPort1
                .PortName = Serial_list.Text
                .BaudRate = 9600
                .Parity = IO.Ports.Parity.None
                .DataBits = 8
                .StopBits = IO.Ports.StopBits.One
            End With
            SerialPort1.Open()
            btnConnect.Enabled = False
            btnDisconnect.Enabled = True

to open the port this also works. The problem being that when i try accessing serialport1 from the main form i get and error being Handles clause requires a WithEvents variable defined in the containing type or one of its base types
The error is occuring at this line:

 Private Sub port_dataReceived(ByVal sender As Object, ByVal e As System.IO.Ports.SerialDataReceivedEventArgs) Handles optionspage.SerialPort1.DataReceived

Thanks guys look forward to hearing from someone that knows more than me - michael