i have dell laptops they all have xp-pro on them.what is happening is i have pykaraoke 7.1 on a disk and installed it on a couple of laptops and it works great.the other laptops say pykaraoke bad configeration,reinstall may fix this.i do that and i8t still doesnt work says the same thing.i even copyed the program from a working laptop and that didnt work.it doesnt make cence that it works on some but not the others.