I purchased my computer in 2003, I am really not sure of the name, it has I believe the first edition of OSX and it is white with a flat screen and revolving monitor if that helps....? When i go to start up, it will go to the white screen with apple logo and the revolving spinner, it will stay there for some time and then just go to a white screen that will stay there until i cut it off....my cd tray does not open so I cant put any kind of boot cd in it and when i hold down shift and control it just says you need to restart your computer, is there any other button combos or anything I could do...it has been like this for a month....thanks in advance