O.k. so i was messing around with theme switcher in 10.2.4 and rebooted and now all i get is a blue screen... it occasionally flashes the desktop picture after the blue screen has been on a while. it starts with a chime and gray apple and the rotating dots of os X. then it show the boot screen with blue bar loading across then blue screen then desktop picture flashes occasionally. i only have my os x developer tools disk and maybe a system folder on a portable f/w hard drive. i am typing on dell x 200 right now (ugh). my broke machine is new ibook 700. restore cd's are not with me. thanks.