hi all, i am new to the mac world, however i have an understanding of mac. they are really easy and simple to use. however the right arrow key does not work. i have read up on this and people say that changing the keyboard settings works however no luck for me. i am running OS X 10.4.11. everything thing on the macbook is standard. it was not working when i got it off my mate. just wondering if there was anyway i could fix this without sending it off to apple?