Hi there
Did some Google search , i found a final fix for Ettercap and resolved the crashing/freezing problem.
1) Uninstall the existent version of Ettercap on BT5 using package manager.
2) download these packages:
https://launchpad.net/~timothy-redae...izzt1_i386.deb
https://launchpad.net/~timothy-redae...izzt1_i386.deb
Now you can call Ettercap from menu or terminal, it wont crash or freeze specially during host scan.
Good luck
GD
