Marek,

> 1. The biggest problem:
> ...
> Fri Nov 07 07:30:48 2003
> Database: C:\FFBSIS.GDB
> lock manager out of room
> internal gds software consistency check (error during
> savepoint backout (290))

Increase LockMemSize parameter of firebird.conf. You need at least <db cache
pages> * <number of connections> * 100 bytes reserved for the lock manager.
I don't know your exact environment, but it seems that 10 MB will fit your
needs.


Dmitry