Last day while me and Arky were fixing Ubuntu Lucid into some computers to be used by blind people, it came into our notice a very simple bug. These people depend on Orca Screen reader to make their way into computing. Unfortunately, at times, Orca crashes and they require to restart the X server to get in place. This was easy for them to press Ctrl + Alt + Backspace and then come back to the working environment. But, in Lucid, after killing and restarting X server, gdm prompts for password to be keyed in, which is not desirable for these differently abled people.
The bug report is here