I've just lite xp(sp3) with nlite 1.4.8,driver related operations are: a.integrate INTEL SATA/ethernet drivers b.removes all drivers After installation under PE,the MS UAA Bus Driver For High Definition Audio can't be recognized correctly,just as a "pci device" with some porblem,when I update the drivers,Windows search 'hdaudbus.sys' in 'c:\windows\driver cache' automatically,and I've to locate it in 'c:\windows\system32\drivers\' manually to finish the installation. Any ideas on how to correct this problem? thanks a lot.