Você pode ser vítima de esse bug
Um pequeno trecho do resumo do bug:
I use ubuntu 11.04.
The version of evolution is : 2.32.2-0ubuntu7
The version of rss-evolution is : 0.2.2-0ubuntu1
When I open evolution without option, It freezes after 2 seconds, but when I open evolution with the command "evolution --disable-eplugin", It works.
So I think plugin evolution-rss is the problem.