Multiple gotoAndPlay don't work

Hi.
I'm new in Flash and I'm on my first project.
I have created a Scene with a menu on the left side. This menu consists of 5 buttons with names "Step 1", "Step 2", "Step 3", etc.

When scene starts, I have set the Step 1 to begin playing automatically.
After that, user can press any of the menu buttons, so he can go to the step he wants.

My problem is that when Step 2 ends, these menu buttons don't work.
Neither when Step 3, 4 and 5 end.
Only when Step 1 ends, the menu buttons work fine.

I have the following ActionScript code on my project:

Code:

---

HomeButton.addEventListener(MouseEvent.CLICK, fl_ClickToGoToScene_10);

function fl_ClickToGoToScene_10(event:MouseEvent):void
{
        MovieClip(this.root).gotoAndPlay(1, "Scene 1");
}

button_5.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndPlayFromFrame);

function fl_ClickToGoToAndPlayFromFrame(event:MouseEvent):void
{
        gotoAndPlay("Step 2");
}

button_6.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndPlayFromFrame_2);

function fl_ClickToGoToAndPlayFromFrame_2(event:MouseEvent):void
{
        gotoAndPlay("Step 3");
}

button_7.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndPlayFromFrame_5);

function fl_ClickToGoToAndPlayFromFrame_5(event:MouseEvent):void
{
        gotoAndPlay("Step 4");
}

button_8.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndPlayFromFrame_6);

function fl_ClickToGoToAndPlayFromFrame_6(event:MouseEvent):void
{
        gotoAndPlay("Step 5");
}

button_9.addEventListener(MouseEvent.CLICK, fl_ClickToGoToAndPlayFromFrame_7);

function fl_ClickToGoToAndPlayFromFrame_7(event:MouseEvent):void
{
        gotoAndPlay("Step 6");
}

---

Thank you in advance.

based on the info you provided.. my first thought is that you maybe only have that code on step1.
if you go to a new frame.. you need to put code there as well... or turn it into a function...

I agree with skedman that it could be an issue of the location of your code, but my solution would be slightly different. For a menu, where you are navigating around the timeline, it is best to have a single keyfame that is as long as the timeline with the code written once, instead of putting the same code on multiple keyframes.

I would also suggest giving your buttons meaningful instance names:
step2Btn instead of button_5
step3Btn instead of button_6
step4Btn instead of button_7

Also give your functions shorter/more meaningful names:
function step2clicked(e:MouseEvent):void instead of function fl_ClickToGoToAndPlayFromFrame(e:MouseEvent):void

If you post source file I could help you out.