Hello you wonderfull clever av computer folk, I was hoping I could ask you something... I'm looking to format/reinstall Windows XP on my sister's prebuild Acer computer right, here's the thing... I have no Windows XP disc specific to that computer. Will any old Windows XP disc be compatible with the geniune (pre installed) product key, or will I need some sort of dodgey 'Windows for Acer' disc? I ask this, becuase the only disc I have at hand is a 'Windows for Dell' XP sp2 disc from another computer. Will that disc work? If not will a generic XP disc work with an OEM Acer XP product key? Many thanks in advance.