On Ubuntu 11.10, after upgrading from 1.3.2 -> 1.4.0 -> 1.4.1, when I go to File->Preferences, I get an error
Error reading lbPreferences.ScrollWidth: Unknown property: "ScrollWidth".
Press OK to ignore and risk data corruption.
Press Cancel to kill the program.
Ignoring with OK doesn't bring up the Preferences dialog either.
I am not sure if it worked in 1.4.0, I had it installed just few days before upgrading to 1.4.1.
73 Marek OK1HAG