Dear all, On the subject of back doors. I have an old Apollo box running Domain 10.4.1 and lost the password for root, the only account. I could not get back in and in the end had to re-install as I could not break in. A short time later I told this story to the HP service engineer who said that I should have given him a ring as they have a way to get in ! He would not tell me anything about how this would be done. Can anyone enlighten me further into how this would be done and if such back doors exist in other operating systems. Thanks. Lyndon