How to Populate the combo box on vb form

I have 1 combo box name is ComboBox1 and two text boxes name TextBox2 and TextBox3 and I am using Access 2007 as my DB.

Now i want that the combo box automatically receive the list from access table and when the user chose any item the other two text box should populate automatically with the relevant data.

Please give me little more explanation with code.

        Thanks