Sarari loses ALL bookmarks!?

[Gregory Cortelyou]

  A strange thing happened to me yesterday on my G3 Powerbook running 
Panther. I put it to sleep for the night as normal, woke it in the 
morning, opened Safari which is my default and very much used browser, 
and ALL bookmarks were gone! Including the standard Apple 
"pre-installed" bookmarks. Bookmarks bar empty too. My history was 
intact and the home page was the same as normal. Just no bookmarks at 
all. I did have a backup of bookmarks, though it is older and less 
complete than what I lost, but this should not happen. I have no system 
"hacks" installed, nobody else touched the computer, and I am a super 
careful user who follows advice and rules. There are several posts in 
the Safari discussion on Apples site saying the same thing, but not any 
solutions or explanations. Posting there is not available for several 
days now. Just reading. Anybody hear anything about this problem?
Thanks,
Greg