Usually when I click on the button icon from the tool box, the wizard will appear. But last week when I click on the same button in the toolbox, the wizard did not appear, so did other icons....What's went wrong?

You may have inadvertently clicked the button that toggles the wizards on and off. Open a form in design view. Then try clicking the button that looks like a wizard's wand on the toolbox and see if that turns the wizards back on.