Comment 1 for bug 78810

I have now installed Feisty by editing Edgy's /etc/apt/sources.list where I replaced "edgy" with "feisty" and run "sudo apt-get upgrade".

The old Ubiquity in /usr/lib/ubiquity was not upgraded so I did:
sudo apt-get remove ubiquity
sudo apt-get install --reinstall ubiquity

 I have also taken backup copy og the old /usr/lib/ubiquity/ and /usr/bin/ubiquity files. The old (Edgy's) Ubiquity runs 100% correctly.

Anyway,
I can now repeatedly recreate both error1) and 2) by running
sudo /usr/bin/ubiquity

I will debug the files in /usr/lib/ubiquity to find out what's wrong.