Millenium

i have recently instaleld age of empires 3 and i played it once and it was
fine, i have vista 32-bit by the way, i then finished and closed the game,
then the computer, in the same day i opned up my computer again and i put the
CD in and clicked play, it said you do not have permision to run the game,
check parental control settings, I have tried EVERYTHING that i know and even
somethings posted in here and it doesnt work, SOMEBODY PLEASE HELP MEEE