WAN Failover - switch back to the default gateway when the internet is back, doesn't work

Binary package hint: ebox

I've entered 2 gateways - "def" (default) and "sec" (secondary). When I disconnect the default gateway it switches to the secondary according to the rule given. But when I turn it back, it doesn't bring the default gateway back. In fact it disables it and it is not enabled even after restart with the default gateway "on-line". I have to enable it manually and moreover it is not the default anymore. When I enable it and "Save changes" it doesn't enable itself. After disabling the "sec" gateway and enabling the "def" again it then enables itself. And so on... It is so buggy I can't even describe a simple case and bug. I tried the installer from the Ebox site - "Core version 1.4.4 ".
Release of Ubuntu: Description: Ubuntu 8.04.4 LTS
Package ver.: ebox:
  Installed: 1.4.4-0ubuntu1~ppa1~hardy1
  Candidate: 1.4.4-0ubuntu1~ppa1~hardy1
  Version table:
 *** 1.4.4-0ubuntu1~ppa1~hardy1 0
        100 /var/lib/dpkg/status
     1.4.3-0ubuntu1~ppa1~hardy1 0
        500 http://ppa.launchpad.net hardy/main Packages
     0.11.99-0ubuntu11 0
        500 http://bg.archive.ubuntu.com hardy/universe Packages