I'm using the beta version, and this happens often but usually it's fixable by registering softpub.dll. Not this time.
Hotmail just gives me the usual "page cannot be displayed" lip, as does MSN.com.
(No, I don't have "Use TLS 1.0" checked, and my security settings appear to be fine.)
It's starting to get on my nerves, mostly because I simply HAVE to access my e-mail.