Please can someone help. I am another victim of stupidity and apples bug.. I changed my permissions, adding myself as read write and including the change to all enclosed folders. Now my system just hangs on re-start with the apple logo on grey screen and the turning wheel. I have tried booting into single user mode and tried the following strings, but none seems to work. I do not know DOS and am quite ignorant when it comes to Command prompt strings and commands but will follow letter by letter any advice. Oh .. to make matters worse I am stuck at sea and do not have my startup CD !!! STUPID!! I have a MacBook running 10.6 Boot into single user mode and type sudo chmod 755 The result is sudo: / private/etc/sudoers is in mode 0664, should be 0440 :/root# sendamail ; warning: valid_hostname:empty hostname Sendmail : fatal : unable to use my own hostname The other solution I tried, also in single user mode is Cd /Volumes :Volumes root# chmod 755 Richard\s\ Notebook/ (this string is achieved by typing the first letters of my drive and TAB) The result is just :Volumes root# I also try chmod 755 Richards Notebook/ .. result is > Please help .. I really really need my email..