Gsa-4081b Install

Good morning, i write from Italy and I have a problem with my new 4081B.
It is installed as Master on the secondary IDE cable. The slave is a CD-Recorder LG. On the primary IDE cable there are HD (master) and a DVDreader (slave). In this configuration, windows2000 doesn’t start. At a certain moment the blue bar stops without error but the system doesn’t start. On the BIOS the DVD writer is correctly detected.
Could you help me.
Thanks a lot