 <p>The text box has a <code>TabIndex</code> of 0 and <code>TabStop</code> set to true. This means that the control will be given focus when the form is displayed.</p> <p>You can either give another control the 0 <code>TabIndex</code> (if there is one) and give the text box a different tab index (>0), or set <code>TabStop</code> to false for the text box to stop this from happening.</p>