I just registered to help solve this problem lol
Listen up ..
The 2 most common types of problems one can possibly face in MSN messenger are automatic logouts , and that stupid error that happened with pretty much everyone who was forced OFF WLM 8.1 to lame WLM 8.5 beta , followed by WLM 8.5 (14.0.8089.726 is the current default) ..
Ulitimately , WLM2009 is coming around ..
The 2nd error am talking about is clarified right here
http://www.hwdot.com/images/Windows%20Live%20Comm...s%20to%20close.jpg
In other words , most people (did / are going to) face the very same type of crap due to MS security claims ..
I was so (guinea peg) like , that i actually tried everything even Microsoft Visual Studio 2008 debug engine ( It's okay if you havn't heared of it , it's a Developer Studio for Programmers / Developers
)
The working solution (for me) was
1) Change your country/region ( no joke i moved myself to California lol)
2) A tiny MSN virus removal tool ..
3) Restart your PC
There are certain types of viruses/malwares that affect MSN's behavior and screws it up
http://www.msnvirusremoval.com/
here is what i used and it worked like a charm , it solved the 2 problems actually ..
the error message , and the automatic logout .. just gone
GL and hope it works fine for you as well