Posted this in the 10.4.3 news section first but really need some help with this if any one has any ideas Well i updated last night and when i restarted i got the grey apple screen then it went straight to a black screen and a command line prompt of localhost:/ root# Now i no next to nothing about unix commands apart from exit and reboot. i've run fsck but it bombs out and says something about invalid extent entry. I've tried to boot into safe mode which had no effect, i've done a hardware check which gave me a green light on the hardware in the Powerbook (1.5GHz 15") If anyone has any suggestions i'd be grateful! I'm at uni and i've left my Tiger disk at home so only have the software restore disks that came with my PB but they have 10.3 on and i really don't want to have to down grade then upgrade again when i go home. Stuck borrowing my housemates dell at the moment. REALLY wish i hadn't updated now!!