Comment 43 for bug 663670

Hooray for opensource ! Thx Kakaroto and Dennis Trinh.
This solution works well for empathy.

"<Go to terminal >
cd /usr/lib/pymodules/python2.6/papyon/service/description/SingleSignOn
sudo gedit RequestMultipleSecurityTokens.py

replace the line
CONTACTS = ("contacts.msn.com", "?fs=1&id=24000&kv=7&rn=93S9SWWw&tw=0&ver=2.1.6000.1")
with
CONTACTS = ("contacts.msn.com", "MBI")
"
You gotta love the power of the console/terminal.