I am using version RBU 7.7 backing up Exchange Server 2007 and some (no all) mailboxes are not backing up and I am unable to restore the last good back up of the mailbox.
Trouble writing files, error -1010 ( API request bad)
1/14/2013 10:20:50 AM: Execution incomplete
Remaining: 759 files, 8,613 KB
Completed: 17 files, 192 KB
Performance: 0.5 MB/minute
Duration: 00:00:25 (00:00:04 idle/loading/preparing)