thx for your help Mr Snrub...... im not using F6.I've got an unattended nlite cd with driverpacks slipstreamed. The strange thing is ....if i make a nlite cd without driverpacks also , i have the same error. I have also a WinXP with no ServicePack at all and after 5 or 6 times i made a clean install.But as you see i would like to have my unattended cd in my pc. Also i don't see anywhere SATA compatibility as IDE in the BIOS. Thx again