I recently picked up a Tyan board with a Promise PDC20378 controller on it. I'm using it in SATA mode not RAID. I already had a built (nLite, SP2, custom unattended setup) XP-Pro CD that I've been using for a while but it didn't have the new drivers on it yet. So I started an install hitting the 'F6' button during the initial setup to install the 378 drivers. All seemed to go fine: hit 'F6', setup asked for drivers, hit 'S' and selected the XP SATA drives, hit 'Enter' to continue etc.... Setup then asked me which partition to use (it saw the disk!!) so I selected the partition, formatted it NTFS - then the problem started. Just as the text-mode setup started "generating a list of files to be copied" I got an error message telling me that "Setup cannot copy the file: UlSata.sys"! At first I thought this was an nLite problem as when I used my original XP-Pro SP1 disk I was able to get past that copy point. Upon further testing I found that it wasn't nLite it was the unattended setup! If burned another nLite CD using the same files but removed the WINNT.SIF then setup was able to find/copy the UlSata.sys file - but I lost my unattended settings/scripts. I did try and slipstream the drivers into the CD using GreenMachine's instructions but I got the same 'cannot copy file' error. Any ideas? CLS