I dont know if you care about supporting your users, but you should at least gave a video tutorial about all the things to do, i can not read your mind and i dont have your knollege about this subjet, please i sugest you consider that.
i got this error after installing:
graphics error. please contact pc administrator to install an setup the sis graphics plug ins available on the sis downloads page
do you now the solution?, y can't see any graphics