Vanishing substacks

[Wilhelm Sanke]

After reading the discussion about "OT: lost everything, macbook and its 
HD broken.  (Andre Garzia)" on the use-revolution list I had reverted to 
the somewhat neglected habit to make backups of essential stacks now and 
then.

This morning I found that a stack, which had worked alright last night, 
had lost all of its 6 substacks, one of them containing a very long 
script library. Happily, I had made a backup of  that stack two days ago 
and was able to  copy the newly added scripts to the backup stack.

I cannot remember having done anything unusual when working with the 
stack, the only thing that was deviating from my usual routine was that 
I accelerated the Windows shutting down process by cutting the power 
yesterday. At that point of time, however, Metacard (2.6.6) had already 
been safely closed.

Has anybody seen such vanishing substacks? What could be the possible 
cause of it? This is on Windows XP.

Regards,

Wilhelm Sanke
<http://www.sanke.org/MetaMedia>