Guild Wars 2

why is our lich form being nerfed?

my build is 10-o-30-0-30 for my traits
and i use lich form as my elite but now with this update we dont get the bonus power wen we go into lich form

hi everyone i had just bought guild wars 2 bout 2days ago and i cant install it again i just got a brand new alienware 14 with more then enough power to run this but wen i place the disks in it will load for bout 20 seconds then it will just dissapear how can i install this game plz help me thank u