> I don't think a) or b) is what is happening in this case though. I will
> let you know what I see in the logs.

I have talked to one of the core engine developers, the other possibilities
are much more wilder - for example, when server is not able to obtain an
exclusive lock on the database file (gfix), few other cases... So you'd
better find a) or b) - that is much more easier to fix. :-)

Roman