i can not log in

im having problems with logging in.its not letting me tipe in password or email.and the graphics is skipping.there is a message saying that the ocean water can not be rendered on your grehics card and this will be sorted in a later patch,

my lap top is an acer inter[r] cpu 550@2.00ghz memory 2gb running linex ubuntu 11.10 not shore what the grathices card is but i do know its good enthe to play.im not that good with computers so please tell me as basically as prossable thanks for you for looking at my post and for any help you can give me

ps sorry about the spelling lol