I have to confirm this issue as well, same version as sulzi, no modifications made on the installation of OE or postgreSQL.
Procedure: create new DB, logout and try to backup -> Access denied error.
I use the latest version of FF, server is on Ubuntu 12.04.2, 64 bits.
I can confirm this issue with the version 7.0-20130316-002523. Duplicating DB and DB deleting is still working....
I have to confirm this issue as well, same version as sulzi, no modifications made on the installation of OE or postgreSQL. Procedure: create new DB, logout and try to backup -> Access denied error. I use the latest version of FF, server is on Ubuntu 12.04.2, 64 bits.
only the version of March 13, allows backup and restore