Over past month Windows Live Mail has started removing large chunks of e-mails from different folders going back 70 - 90 days, yet the e-mails remain on my server.

So far I have:

• Deleted all locally cached headers and message bodies,
• Deleted the account and re-added it
• Updated to Window Essentials 2012

Yet the issue continues to occur.  For a day or two the above changes solve the issue but it always comes back.