I have a T-bird 1.0 gig...512 meg of ram running on a partitioned Maxtor 100 gig ata-100. I bootup winxp corp edition in about 30 seconds-after running bootvis there wasn't any noticable difference whatsoever..? Just thought i'd speak my results...I really love XP, it's very cool, and the best OS that i've run yet...even after win2k. cheers, Jackpot