ok, so ive downloaded impulse into my computer. but im not sure if ive really installed it yet, so i go into my downloads area, and click on the impulse icon, i get the install shield and that goes through but then the impulse install pops up and immediatly goes away, theres no errors or anything, it jsut wont do anything. is this because i have nothing to install? i havent preordered demigod. when i do will something pop up?