Unable to move email or view some email in Mail w/ Google Apps

Question

Using Apple's Mail application to access my Google Apps accounts via IMAP.
I'm having two problems:
1. I cannot view any email messages in any subfolder of my account when working within Mail. Everything shows fine when I log in directly through Google Apps/Gmail. Note that the "Rebuild" option under my Mailbox menu is disabled for whatever reason, so I can't try rebuilding Mail's index/database.
2. I am no longer able to move messages from my inbox to any of my subfolders. It's been this way for a couple days now.
Specifically, I get the following error...
The IMAP command “UID COPY” (to INBOX/1 - Scheduling) failed for the mailbox “INBOX” with server error: No folder INBOX/1 - Scheduling (Failure).
...which comes up when I try to move a message from the Inbox to the subfolder "1 - Scheduling".
Any thoughts or suggestions? Both of these things worked for a couple days after I first set this up last week.
So far, I'm too happy with my migration to Google Apps
Frustrated,
Dan

Answer 1

For anyone who's curious, I was able to fix the problem by converting my old folder structure into single-layer labels. I guess Google still chokes on mail that is stored in multiple nested/hierarchical labels because it works fine now.
So NOT a good "solution", but at least it works in all email clients now.