I did a fresh install of windows xp pro with sp3 and had the hyperthreading on, after about 3/4 into the install it would lock up until after 3 hours trying I dis abled hyperthreading, then it finished the install in seconds, now I turned on the hyperthreading and it worked until I restarted windows the next day and it freezes on loading your settings. why does this happen? is it just my windows not compatiable, and should I just upgrade to vista ( not that I want to) how can I make my 2.6 p4 with Hyper threading work on xp.