Progress Bar in Ubuntu 10.04 and Math.Random()

[Bruno Moreira Alves]

Hi everyone, been having some realy hard time with plymouth customizing
here...

I'm using Ubuntu 10.04 Lucid Lynx... I was trying out some themes, but
realized that every theme that shows a progress bar doesn't properly
work... the boot process finishes and the progress bar is still around
15%.... even the ubuntu-studio theme installed from ubuntu repositories
show the same thing....

why?

and another thing.... 

since i wasn't getting a proper progress bar, I started playing around
with other themes, so I got the MIB-Ubuntu theme, and created seven
different backgrounds, named bg1.png, bg2.png... , my idea is that every
boot up/down one of these backgrounds would be randomly selected, so I
have added the following lines to the script:

randombg = Math.Int(Math.Random()* 6.9) + 1 ;

and 

background.original_image = ImageNew("bg"+ randombg +".png");

it works, but everytime is the same background, the random function, is
using alway the same seed I suppose?

I've tried loading all images, and randomly selecting one of them, but
that only made de plymouth take a longer time to load, but still showed
always the same bg....