Copying a resource file to a directory

Question

Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        SaveFileDialog1.ShowDialog()
    End Sub

    Private Sub SaveFileDialog1_FileOk(ByVal sender As System.Object, ByVal e As System.ComponentModel.CancelEventArgs) Handles SaveFileDialog1.FileOk
        If SaveFileDialog1.FileName = "7.iso" Or SaveFileDialog1.FileName = "" Then
            Call MsgBox("Incorrect save directory - [email protected]")
        Else
            My.Computer.FileSystem.CopyFile(W_7.My.Resources.7.Clone, SaveFileDialog1.FileName)
        End If
    End Sub
End Class

There are no errors to this code, except the resource file error which is..

Error   1   Invalid Resx file. Arithmetic operation resulted in an overflow. Line 123, position 5.  C:\Users\Noob\AppData\Local\Temporary Projects\W7\My Project\Resources.resx 123 5   W7