I'm thinking about upgrading to a 3.0C GHz Pentium 4. First off, I can just drop it in and windows will be fine, right? Won't have to reinstall or anything. Second, will hyperthreading work? I do have XP Home Edition, don't know if that's an issue. But also, my current CPU doesn't have it, so Windows isn't configured for it? If I can just drop it in (which I'm thinking I can), if I turned on hyperthreading in the CMOS would that mess windows up? If it would, I could just leave it off. Right?