Actually, I originally filed this bug against Dapper... In any case, installing thunderbird solved the problem permanently for me and I'm not looking back (took about an hour to copy mail around and configure). It's not perfect, but it's much more stable and has never crashed my machine.
-- Runaway leak in composer https://launchpad.net/bugs/51662 -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
