grr help plz

[italibabee]

ok so the download went great...i have windows vista by the way....and so i downloaded it set it up and im at the start menu which works so great...not slow at all...but when i click play demo it goes to the loading page and it takes like 5 minutes to load then it shuts off and says something went wrong...ive bben doing this for mayb the past 30 minutes....i just dont know whats wrong with it....

any help or advice? plz and thank you