void LbnWhatsNextLinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
            frmAboutHelper fm = new frmAboutHelper(@"Docs\whats-next.rtf", "What's Next");

            fm.ShowDialog();
        }
        private void lbnKnownIssues_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
            frmAboutHelper fm = new frmAboutHelper(@"Docs\known-issues.rtf", "Known Issues");

            fm.ShowDialog();
        }
        private void lbnLicenceText_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
            frmAboutHelper fm = new frmAboutHelper(@"Docs\gpl.rtf", "GPL License Text");

            fm.ShowDialog();
        }
        private void lbnChangeLog_LinkClicked(object sender, LinkLabelLinkClickedEventArgs e)
        {
            frmAboutHelper fm = new frmAboutHelper(@"Docs\change-log.rtf", "Change Log");

            fm.ShowDialog();
        }