Yeah, dont worry! this problem has happened MANY times to me. It goes all weird and says "Required resource was..." i get that all da time. Mostly in JCS working on my levels

Ahem. Now to fix this.

Basically as link said, do a ctrl+alt+del and remove everything BUT EXPLORER, then, if that still dosent work restart your computer (regularly) then do ctrl+alt+del and delete all proggies again, then run jazz2.

If that dosent work, reboot your computer and press ctrl+F5 or on some different models just ctrl. AND HOLD IT

You will then come to a menu, there are numbers pertaining to choices, use the numbers above the letters on your keyboard to select it.

If that still dosent work take it to where u bought it and get it fixed/replaced, or you can re-install the computer

I hope all this informarion is useful.