I'm getting an error I've never seen before when I'm trying to connect via WM this morning. I'm getting the usual "We can't sign you in to Windows Messenger" error, but the error code is cffff82e, which neither Bing nor Google has been much help with. The only references I could find were a couple unanswered questions on the Brazil/Portuguese section of this site.

Version 2012 (Build 16.4.3503.728) on Win7 Pro x64

--mark