I’ve had issues with empathy where it would refuse to connect (even try) to MSN. In older versions of Empathy (whichever version was included with Lucid Lynx) you would.
killall telepathy-butterfly
However this is not longer possible, instead you need to do this.
ps -ef | grep telepathy
Which lists all the telepathy processes.
celc 2000 1 0 17:20 ? 00:00:00 /usr/lib/telepathy/mission-control-5
celc 2010 1 0 17:20 ? 00:00:00 /usr/lib/telepathy/telepathy-haze
celc 2012 1 0 17:20 ? 00:00:00 /usr/lib/telepathy/telepathy-logger
celc 2098 1 0 17:20 ? 00:00:01 /usr/lib/telepathy/telepathy-gabble
celc 2100 1 0 17:20 ? 00:00:05 /usr/bin/python /usr/lib/telepathy/telepathy-butterfly
celc 2529 2315 0 17:39 pts/0 00:00:00 grep —color=auto telepathy
Find the butterfly one and smash it, in this case:
kill -9 2100
Now MSN should be able to connect again.