It looks like once again Hotmail is having problems: I paid them $20 for Hotmail Extra - they should put us on different servers or something!

After submitting a support email, I got a really lame response from MSN which basically said "we know, we're working on it", but no ETA.  "Please remain confident that Hotmail is in control of the situation and is committed to serve you better."

They could have at least told me in advance about the problem rather than waiting until I sent an email message.