> but this exception is thrown. Can this be something related to JBuilder?
> I dont have any other connections to the database.

> //-----------------------------------------------------------------
> org.firebirdsql.jdbc.FBSQLException: GDS Exception. 190. lock time-out
> on wait transaction
> object C:\PROJEKT\FDB\VIDEO.FDB is in use
> user does not have GRANT privileges for operation

Most likely - no. I think this has something to do with the user under which
database is restored. However, in order to be sure, please ask in the
Firebird-Support list - it will be enough to mention the error message only.

Roman