every time i go to play the game, and alt+tab out while i let it load, it doesn't let me alt+tab back. i get the same window i was on when i heard the music, and if i click, i get the KO mouse pointer but it doesn't switch to the game. even sometimes i don't alt tab out, it does it. but if i don't alt+tab out the screen freezes and i get the spinning circle (i'm on vista) and it doesn't show it's loading progress. i got once, into the game and it crashed also. >_>

I had same problem with windows 7.

Solution -> Back to XP until win 7 gets few service packs .