I going to install Win XP on a new computer (with no operating system). After I install Win XP (no SP's) from my (legal) Win XP install CD, can I install SP3 (from an SP3 install CD) as the next step? Or, do I have to install SP2 first? I am aware of "slipstreaming', but why go to the trouble when I already have install CD's for SP1a, SP2, and SP3. (I realize that Microsoft Update soon will only support WIN XP at the SP3 level.) Please advise.