[Evolution] Where did my Inbox go?

[eric schweitzer <ershc123 nyc rr com>]

I'm running Evolution 2.26.1 under Ubuntu 9.4 and the contents of the 
Inbox is no longer being displayed. When new mail comes in a 
"send/receive" gives a message about mail being downloaded, but it 
doesn't appear in the Inbox. If I look at ~/.evolution/mail/local/Inbox 
the new message is there, but Evolution is not displaying it. All the 
other db Inbox.* files are there. Other folders are displaying their 
contents correctly.
I even renamed the Inbox* files so that when I fetched new mail the 
files would be re-created, and they were. Again, 
~/.evolution/mail/local/Inbox contained the new mail, the other db files 
were also created, but the Inbox display in evolution is still empty.

Anyone with a clue as to what might be broken, what to look for next or 
how to fix it?

TIA!