Folks,
If you are having issues with connecting to MSN messenger through Empathy in Maverick (Ubuntu v10.10), then you can resolve this issue by modifying the file “RequestMultipleSecurityTokens.py”. Atleast this solution worked for me!! If still the below solution doesn’t work then kill the butterfly process, restart empathy IM again and re-login to MSN. It should work. However, the below working method you can follow to resolve the MSN connecting issues.

gksudo gedit /usr/share/pyshared/papyon/service/description/SingleSignOn/RequestMultipleSecurityTokens.py

Search for the line similar to this (some values modified):

class LiveService(object):
CONTACTS = ("contacts.msn.com", "?fs=1&id=14000&kv=7&rn=223eSWWw&tw=0&ver=1.1.1000.1")

Replace the second parameter with “MBI”
Now the modified line should look like this:

class LiveService(object):
    CONTACTS = ("contacts.msn.com", "MBI")

Then restart your empathy IM and re-connect. The problem should be gone by now! If still this doesn’t resolve the issue, then kill the butterfly process and restart/re-connect your MSN IM Account.

Enjoy!