Backup file not found by validate
TIH2011 build 6696. Using pre/post scripts similar to chain2gen, i.e. moves current backup set to a known directory (D:\current\), does incremental (or full) backup and validate, then moves everything back to another directory for upload to remote backup archive in the wee hours overnight. The script has been working for about a month, including across a month boundary which causes a new full backup to be done, and continues to work on another nearly identical Win7 system. This system stopped working about a week ago without any known provocation. It still performs the backup but fails trying to validate it. This is what the email notice says:
1 Information 3/19/2011 12:00:02 AM Operation Daily backup on Shirley started.
2 Information 3/19/2011 12:00:02 AM Analyzing partition '0-0'...
3 Information 3/19/2011 12:00:02 AM Analyzing partition 'D:'...
4 Information 3/19/2011 12:00:03 AM Analyzing partition '0-0'...
5 Information 3/19/2011 12:00:03 AM Analyzing partition '2-2'...
6 Information 3/19/2011 12:00:03 AM Analyzing partition 'C:'...
7 Information 3/19/2011 12:00:04 AM Child process has exited with code '0'.
8 Information 3/19/2011 12:00:04 AM Execution of user command succeeded: C:/Program Files (x86)/Acronis/prebackup.cmd
9 Information 3/19/2011 12:00:05 AM Create Incremental Backup Archive From: System Reserved (2-2), NTFS (C:) To file: "D:\current\@date@_@time@.tib" Compression: Maximum
10 Information 3/19/2011 12:00:05 AM Pending operation 147 started: 'Creating partition image'.
11 Information 3/19/2011 12:00:05 AM Locking partition 2-2...
12 Information 3/19/2011 12:00:05 AM Pending operation 147 started: 'Creating partition image'.
13 Information 3/19/2011 12:00:05 AM Locking partition C:...
14 Information 3/19/2011 12:02:03 AM Pending operation 144 started: 'Saving partition structure'.
15 Information 3/19/2011 12:02:04 AM Validate Backup Archive Location: "D:\current\2011-03-19_0000.tib"
16 Information 3/19/2011 12:02:04 AM Pending operation 3 started: 'Validate Backup Archive'.
17 Information 3/19/2011 12:02:29 AM The specified file does not exist.
function="OpenFileW"
filename="\\?\D:\shirley\2011\03\2011-03-12_0000.tib"
19 Warning 3/19/2011 12:02:29 AM Specify location of the volume
Where did it get that file name to validate? That's where the files get moved to/from (less the leading '\\?'), but how does TIH2011 know that? The task XML doesn't refer to that location and I've removed all other tasks. The file exists, but in D:\current during the backup and validation. If I validate the backup manually (with files in D:\current) it validates just fine, but the next night it fails again the same way.
I can't find a reference to that path in any of the various XML files or the registry. Which brings up another complaint, where is the documentation of all the XML tags and attributes along with a description of where all these files are and what they're used for?
Thanks for any help or insight into fixing this problem.

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