so i have a windows XP professional disk, SP2 and all. i am trying to install windows, i get as far as partitioning the disk, but once it says "please insert XP disk" i do that, and it will think for a few minutes, and make a loud noise [coming from the mac] then a message pops up and says 'please insert installation disk.' the disk is brand new, what am i doing wrong? should i be partitioning the windows side larger? pleaaase helpp!!