Hi!

> Thanks for your suggestion. I added the following line to my
> firebird.conf file:

> ForcedWrites=On

> But after 4 powerdowns during insert activity, I got the following
> message after trying to update a database table:

> ... update agt_idle set end_idle='2005-03-01 07:50:51' where
> guid='agent67890123026' and end_idle is null
> SQLCODE: -902
> firebird reports: internal gds software consistency check (cannot find
> record back version (291))

> By the way, this is on a realtime variant of Linux, Carrier Grade Linux.

Try this:
gfix.exe -user SYSDBA -pa masterkey -w sync DEMO.FDB

Sasa