Sorry for reviving this thread I have searched through the FAQ's, forum, and Guides for three days now and can't seem to find an answer. I am having the same problem as original poster. I am told to insert XP SP2 CD (which I have) right after I am asked for partition info...and of course it will not recognize it or any other (i.e. the unattended CD) as valid. My root contains the following for a XP Home Edition with SP2 slipstreamed and Add-Ons added using nlite (I've tried both versions): \I386 AUTORUN.INF boot.bin README.HTM SETUP.EXE setupxp.htm WIN51 WIN51IC WIN51IC.SP2 I have NOT tinkered with TXTSETUP.sif in any way.... So, I am trying to figure out what else could cause the problem since it seems that I have the files needed??