suggestions are more than welcome ! After an update (i now have maverick os 10.9.3) Safari froze.I tryed starting it again,nothing. restarted my computer (Imac 2008), then nothing but a gray screen,apple logo and spinning pin wheel !! I could get into disk utility to 'varify and repair',everything was apparently OK. I saw a letter from a few years ago ( who it was from,i can't remember ) . It suggested restarting with command-v, it scrolled down a lot of written material and stopped at :- Bootcachecontrol : unable to open/var/db/boot cache. Playlist:2 No such file or directory. Can anybody help me? I have'nt been able to use my iMac for two days!! Greetings from danish Jonathan. PS- It's nearly 12.30 at night here in Denmark so i'll have to go to bed (have to get up early).