just about all of those I have seen asking similar questions of late have selected on of the quick-filter options like attachment so no mail appears.

Matt:

Thanks for the suggestion but that is not the problem. I keep my emails in separate folders because I am an attorney and usually need emails separated out. I have a "Clients" sub-folder in the Local Folders and then sub-folders for each client. None of those emails now appear. Nor any other emails, including sent emails, except incoming emails. And if I open some of those, they disappear also. I can still find them if I can think of the right search terms, but they are still not visible. If you can make another suggestion, I'd appreciate it.