Smooth Preloader

Simplistik posted code a long time ago of a smooth preloader, I just can’t find it anymore so I’m gonna assume its dissapeared off the face of the forums in some hack or the other. In that case, does anyone have a solution for smooth preloaders? The code I have right now just assigns the _xscale of my loading bar to the percent loaded, which makes for a jumpy preloader (and if its too fast it skips the preloader entirely which looks pretty bad)