i am having trouble reformatting/installing xp pro on a pre installed vista on my vaio laptop, i just bought it new- model# vgn-ns190j, the reason why i got it was for using it so i can use alldata (car repair )in it but alldata does not have any fixes nor microsoft. my only option left is to install another os, everytime i try to install xp, i get the error message with the blue screen, i even got into the bios of this laptop but the options on pretty much everything is highlighted gray, meaning i cant even open or see the hard drive. called sony but they said call microsoft.