Funny, but I do remember this happening before, but I just can't remember the issue and/or fix. When I open my email, the screen paints, but hangs, with a busy indication (red circle) and a red error message. This happens on the last open/displayed email entry. In this mode, none of the email click work (like selecting another email), but the upper level menus are functional. Here is an image of my email page:
Any thoughts and/or help would be appreciated.
Update - I clicked on the "Unread Only" box and refreshed my screen. I then had a shorter list (with the offending email not shown). I was able to click on one of the unread emails, removing the offending email from the preview window. I then unchecked the "Unread Only" and my email now seems to be working fine. (I was not brave enough to click again on the offending email to see it the problem would repeat).