The same image on one computer works and on other is not present?!

[flashg]

The strange thing leaves I could start an image through DT4.03 on ноутбуке games KINGKONG at all not disconnecting disk drive DVD a drive and game has joined on ноутбуке XPSP2HOME and on other computer that I used DT4.03 that 4.06 and even disconnecting disk drives through Starforce Nightmare it has not turned out to start game the message took off insert a disk for other disk drive

Here the question and the interesting fact why on ноутбуке even without switching-off of disk drives and используюя DT4.03 game is started and on a personal computer the system of protection finds out that the image instead of the present disk is inserted.

Thanks.