I just got my macbook and I love it so much. But After I installed all my programs (Word) and music, I Went and did a software update. When it was done it asked to restart and so I did. Then when I wait for it to reboot, I get a circle with a slash in it on the screen with the apple logo flashing over it periodically. I dont know whats wrong, but I didnt expect such problems from a mac.