I purchased a XP CD for my mac. Everything went fine except one thing. I started installation and everything was fine. There was a window saying copying files from disc and when it was successful a window came saying that the computer will restart in 3 sec and so on and it further said that the setup will continue after restart and a window came and it it said press any key to boot from CD and after that it said, disk error and press any key to restart and I don't know what to do after that. pls help! And how to boot from mac to windows and vice versa.