Jerky floating menu

JavaScript
1

Does anyone know how I can get this menu: http://plugins.jquery.com/files/stickyfloat_0.htm

to move as smoothly as this menu when you scroll:

See how the cyberpowerpc menu is perfectly still when you scroll and the first one is jerky? is there a way to make the first one smooth like the 2nd one?

2

Change

$('#menu').stickyfloat({ duration: 400 });

to

$('#menu').stickyfloat({ duration: 0 });