Two days ago all of attachments I receive from any sender show up as a zip file.

I used to receive items as a word doc or jpeg, etc.  Its a giant PIA to download a zip file to look at a collection of pics.

This isn't just one sender, it is all senders, and I seriously doubt most of the senders would even know how to "zip"

What has changed with msn.com?

 Now when I open an email with attachments, I can briefly see "loading blah, blah, blah," but it quickly disappears and I am

left to download the freakin zip file.  

What gives?