Hi Scott –
Reinstalling Mail don’t do much of anything.
Mail programs in general don’t like lots of messages – especially lots of messages in lots of folders. I would avoid putting more than 10,000 messages in any given folder.
I would start by forcing Mail to rebuild its mail index. You can do this by first quitting Mail, then opening Chip’s Home folder, then Library, then Mail. Just drag the file called ‘Envelope Index’ to the trash. Then re-open Mail.
It will look like Mail is re-importing messages. That’s normal. Just wait for it to finish & then test accessing the folders again.
On Fri, Jan 27, 2012 at 1:44 PM, Scott wrote: > Chip uses Apple Mail. > > He’s got a bezillion folders. > > Recently, he’ll view a folder that should have a lot of messages in it. But > none display. Same thing when he checks other folders. Some DO have all the > messages there. > > If he restarts, sometimes (not always) the messages return to the folders > which were previously mysteriously empty. > > My sense: uninstall and reinstall Mail. Is that right? How? With, of course, > keeping all messages and setting intact. > > Thanks, > > Scott