I installed windows xp on my macbook, only problem is I installed Windows over mac os x. So now when i turn on my macbook it loads windows xp from the start and the right click button and the eject button on the keyboard dont work. So now i am trying to reinstall mac os x and i cant find my os x disc, so i have leopard on a flash drive and i cant install it, and i have mac os 8 so i was going to try and install that and then open my flash drive and install leopard, but it wont boot, I help every button on start up and nothing works. HELP ME PLEASE