I guess I am still missing something in the Event Driven paradigm ...

I have a menu that gives the user access to sections in my code ... this is
a training application, so think of it as access to chapters.

When the user selects a button, I launch a 'splash' form that shows for a
couple of seconds, then I launch a second form that has course content. I
want some things to happen once the content form has opened, specifically
some audio needs to play.

When I close the Splash form and open the Content form, the audio plays
after about 2 seconds as expected, but the Splash form is still on screen.

Initially I used one container for the forms, like this

newForm= new SectSplash(ChoiceNum);

newForm.Show();

.....

newForm = new Content(ChoiceNum);

//Show it

newForm.Show();

So I tried using two different containers:-

splash= new SectSplash(ChoiceNum);

splash.Show();

.....

content= new Content(ChoiceNum);

//Show it

content.Show();

It made no difference.

I have tried a zillion combinations of Hide, Close, SentToBack and anything
else I could find.

I have tried all sorts in the opening form , running the code to play audio
on Load, on getFocus, on Activated etc, and even tried putting in a cludgy
delay in numerous different places to try to give the PDA time to kill the
form

for (int i = 1; i <= 100000; i++)

{

//nothing;

}

None of this seems to change the fact that the audio plays when the Splash
*should* be gone, but is somehow still visible.

Having said all that, here's the code.

private void LaunchSplash(int ChoiceNum)
{
   splash = new SectSplash(ChoiceNum);
   //Show it
   splash.Show();

   Clock = new Timer();
   Clock.Interval = 2000;
   Clock.Enabled = true;
   this.Clock.Tick += new System.EventHandler(this.Clock_Tick);
}

void Clock_Tick(object Sender, EventArgs e)
{
   //close slash
   splash.SendToBack();
   splash.Close();
   //Stop timer
   Clock.Enabled = false;
   //Launch the lesson
   launchLesson();
}

private void launchLesson()
{
   switch (choiceNum)
   {        // Set DECtalk voice
  .
  .
       case 5:
           content = new Taxiing();
           break;
       default:
           //Nothing to do
           break;
   }

   //Show it
   content.Show();
}

Then in the new content form

private void Taxiing_Load(object sender, EventArgs e)
{
   if (Globals.SoundOn)
   {
       Speech.speak(label2.Text);
   }
}

I'd be grateful if anyone can show me what I have done wrong.

TIA

Steve