I Follow The Instruction To Install Parallels, But After I Finish Installing Parallels The Software Open Up The Setup To Create A Virtual Machine And I Skip The Activation Of A Copy Section. In Other Words Did Was Not Complete At This Time. Well I Finish The Creation Of A Vm Section After I Press Save , I Am Suppose To Press The Power Botton Off In Order To Proceed To Install The Window Xp Operating System. Well This Did Not Happen, The Computer Turn Off Period. I When Back, And Try To Activate The Software Going To Activation Option But When I Input The Serial Numer Several Times A Window Kept Opening Telling Me That The Numer Is Incorrect. This Can Not Be Possible I Bought The Software In An Apple Store. Well I Am Stock With This Problem Hopping Somebody Will Guide Me Please Thanks Ismael