If your PC is running Microsoft Windows Vista Business or Windows Ultimate and you're fed up with the OS, you may be able to ditch Vista for XP Pro. The software giant is now allowing some customers who are fed up with Vista to revert back to XP, and has started to provide PC builders will a 'downgrade' option on Vista Business and Vista Ultimate.

That is a question which is faced by every one. If you ask me, even I am confused because there is no straight answer for it. As mankind has always progressed and survived by finding new, faster and better ways of doing things and developing new technologies and updating the existing one.