Comment 4 for bug 662780

Maybe this bug is fixed in latest gnome-dvb-daemon release:

Version 0.2.1 - 2011-05-23
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 DVB-T brute-force scan works correctly, again.
- Fixed binding gettext domain
- gnomedvb: Set window position of preferences window
- gnomedvb: Launch gnome-dvb-setup when pressing on preferences button
- Manager: disconnect from destroyed signal before destroying Scanners in shutdown
- Adjusted DVB-T brute-force scan to new signature of AddScanningData method

Latest release can be downloaded from http://download.gnome.org/sources/gnome-dvb-daemon/0.2/

Please update Ubuntu packages to gnome-dvb-daemon 0.2.1.