flicking for MainForm
<p>I have login form and a mainForm.</p>

<p>After loading MainForm, it will be hidden and load the LoginForm. If the user enters correct authentication then the loginForm will be disposed and the MainForm is shown. But the mainForm got flicks for the first time loading for several seconds.</p>

<p>I am implementing in C#.</p>

<p>How can I avoid this flicks? </p>

<p>Thanks in advance</p>
