i just htought i would share my story. but i have a legit copy of Xp pro from a long time ago. had some OS problems so i went to reload my OS and i found a large crack from the center of the cd. i called M$ and told them my situation and they are sending me a brand new disk with all the updates as well as a new serial number. all i have to pay is $29 for shipping and processing of the CD...but it will be here in about 4 days. thought that was kinda neat. just thought i would share this. i found the number to reach them here http://support.microsoft.com/default.aspx?scid=kb;[ln];326246 they just asked me what the part number of my CD is. never asked me for my serial number.