Hi, I've got the same problem. It occurs when I try to view a message from an author who got a X509 cert.
It's not possible to restart evolution without specifying an additional option such as "--disable-preview". evolution: symbol lookup error: /usr/lib/evolution/2.12/components/libevolution-mail.so: undefined symbol: camel_smime_context_new Package : evolution Version : 2.12.3-1 -- Sys info : Debian Release : lenny APT prefers testing APT policy: (900, 'testing') Architecture: i386 (i686) Kernel : Linux 2.6.24 (SMP w/2 CPU cores) Locale : LANG=fr_FR.UTF-8, LC_CTYPE=fr_FR.UTF-8 (charmap=UTF-8) Shell : /bin/bash Versions of packages : ii evolution 2.12.3-1 groupware suite with mail client and organiz ii evolution-common 2.12.3-1 architecture independent files for Evolution ii evolution-data-server 1.12.2-1+b1 evolution database backend server ii evolution-data-server-common 1.12.2-1 architecture independent files for Evolution ii evolution-plugins 2.12.3-1 standard plugins for Evolution ii evolution-plugins-experimental 2.12.3-1 experimental plugins for Evolution ii evolution-webcal 2.12.0-1 webcal: URL handler for GNOME and Evolution Thanx. -- Mickaël Masquelin