Version 3.1.2, OS X 10.5.5.
Everything was running smoothly, left the building,
nobody entered the room, came back and found that
I had to retype username and password for *everything*
that I need to register for online and new pages cannot
now be saved as bookmarks.

The problem has now corrected itself but I am totally mystified
as to what caused it and how it was corrected since I was using
Safari in the manner I normally do.
Everything was running smoothly, left the building,
nobody entered the room, came back and found that
I had to retype username and password for *everything*
that I need to register for online and new pages cannot
now be saved as bookmarks.
The problem has now corrected itself but I am totally mystified
as to what caused it and how it was corrected since I was using
Safari in the manner I normally do.