Tom clancy's hawx demo won't launch?

i installed the demo, but it won't load, i tried to launch it several times, even after restarting my computer - nothing helped! i have an intel gma g33/g31 express chipset, maybe that's my problem? please tell me as i really want to try this game. thanx to everyone who answers it. also, i very rarely grade the answers (choose the best one), and this time i will!