Security professionals have been relying on the BackTrack security distribution for many years to help them perform their assessments. Backtrack team released few updates to Kali Linux as version 1.0.3 and fixed couple of bugs. “Our first attempts at building an accessible version of Kali failed and after a bit of digging, we found that there were several upstream GDM3 bugs in Debian, which prevented these accessibility features from functioning with the GDM greeter. Working together with an upstream GNOME developer, we knocked out these bugs and had the fixes implemeted in Kali, and hopefully in future builds of.
Source: https://thehackernews.com/2013/04/update-backtrack-kali-linux-103.html