Windows XP login thing I want it gone!

Hello

I have never figured out how to remove this.

When you turn on your computer in xp some computers go to this logo in screen where you pick your user and login. How can I turn of this feature so it just logs me in everytime and i dont have to click. My computer in my house is the only one that does it and i think its from some ip adress update thing I did.

so if you know how to remove this please reply. T

Thanks
Phil