I tested bluetooth on another Ubuntu 12.10 installation, and it had the very same error that crashed the dialog. I noticed that the bluetooth-wizard showed the device code "00:41:A5:AA:88:71" instead of its name "HTC Hero". This error also disappeared after upgrade.
I cannot produce the error anymore on Ubuntu 12.10 and the wizard-dialog works right.
I tested bluetooth on another Ubuntu 12.10 installation, and it had the very same error that crashed the dialog. I noticed that the bluetooth-wizard showed the device code "00:41:A5:AA:88:71" instead of its name "HTC Hero". This error also disappeared after upgrade.
I cannot produce the error anymore on Ubuntu 12.10 and the wizard-dialog works right.