I can open Live Mail, but I get the following (as of this morning):

Unable to send or receive messages for the xxxxx account.

Server Error: 5102
Server: 'https://mail.services.live.com/DeltaSync_v2.0.0/Sync.aspx'
Windows Live Mail Error ID: 0x8DE00002

However: I can open the messages in Outlook, which is not my preference. I have been receiving messages to  update my instant messenger  to the  latest version, which I have (Skype 6.6); the "latest version" referred to is 6.3, which Skype properly reminds me is older than what I have. I'm running Windows 8.

To complicate matters even  more,  existing WLM messages are opening in Gmail.

I did a Windows Live Essentials repair, which didn't help. 

Other than removing WLM completely and reinstalling it, what can I do?

Thanks.

Original title: windows live mail