I'm trying to use the same password I use when I sign in on the Windows Side of my Mac. The Messenger icon is in my dock, but for some reason will not let me sign in it. It says, sign in failed because the password is incorrect or the sign in name does not exist. well, I tought of changing the password and re-downloaded the Microsoft messenger again but still not working out I tried the following solution but still not working
Cause: There is incorrect information saved in the preferences file. Solution: Delete the Messenger preferences file, and then reenter sign-in information. In the Finder, open /Users/username/Library/Preferences/, and then drag the following files to the Trash: com.microsoft.Messenger.plist and com.microsoft.Messenger.rtc.plist. In /Users/username/Library/Preferences/Microsoft/, drag the following file to the Trash: Microsoft Messenger User Cache.plist. Open Messenger. The Messenger Setup Assistant opens. Follow the steps in the Setup Assistant to reenter sign-in information.
I've got the same problem. I tried the solution that you tried as well and it did not work. I still have the same problem. It appears to be an external problem because I can't sign-in on any of my macs on the 1 account (but I haven't tried bootcamp yet).