installation problem

[zx00]

today I tried to install DT 4.06 on my computer and after the license agreement page it has a pop up saying I should reboot my computer before installing, which i clicked yes and it did. After the system restarted and I tired to install it again and it gave me the same message asking me to reboot, I had tried to reboot it around 4 times now and the same message pops up everytime. I never had any problem like this when I was using DT 4.00. ( which I tried to install DT 4.00 again and it turned out okay) I also tried deleting the old folder, dtsci.sys which didn't help.

Also i'm running a chinese simp version of Windows XP and have Nero 7 installed if these are related to my problem.