A little while ago i tried to install the new 10.4.9 update and the iPhoto update. The iPhoto update installed fine but the 10.4.9 kept having an error in its attempts. So I decided to wait until tomorrow to try again but went to restart my Macbook because my torrent programs (xtorrent, transmission, and azeurus kept immediately quitting) would not open. So i selected a system restart, my MB shut everything down fine then when it rebooted the apple logo appeared along with the chime, the screen turned the blue color it does right before it says booting mac osx, but that message never popped up. Instead, i just see my mouse arrow (i can move it around) and every 30 seconds or it will disappear and the small circular loading icon will spin and the process keeps repeating itself. My MB just wont boot up! Please any suggestions are much appreciated!