>Nadya,
>
>Your first message said that the problem occurred after some changes of yours. So I guess there's a problem with the changes you've made. I would look there first since it used to work, didn't it ?

All I did was to change the sequence of managers and not instantiating managers we're not using. I suspect one of these managers actually set database. Anyway, I think the proper way would be to always use database prefix to avoid ambiguity.