HD to HD image, some things doesn't work

Hi. I've made several images from a hard disk, containing Windows Xp and lots of games, almost all of them work perfectly, but a couple like Battlefield, Vice City wont even launch. I try to launch the games, but it hardly toches the hard disk, and nothing happens, like if I didn't even tried to launch the game... (the computer hardware is the same in all the machines)
Please help...

I'm not really familiar with what all happens when you "image" a harddrive. Does your registry file make it over intact? My best suggestion would be to re-install the games over where they are and see if that fixes it.