Exchange Backups Failing

SBS 2003 SP1 with Exchange 2003 SP2.

We are using the NTBackup utility that comes with SBS 2003 to back up the server. The backups have started failing and, in the log files, what stands out is this:

Backup started on 7/17/2006 at 1:59 AM.
WARNING: Portions of "\Program Files\Exchsrvr\MDBDATA\priv1.edb" cannot be read.  The backed up data is corrupt or incomplete.
This file will not restore correctly.
WARNING: Portions of "\Program Files\Exchsrvr\MDBDATA\priv1.stm" cannot be read.  The backed up data is corrupt or incomplete.
This file will not restore correctly.

Can I trust this and assume that I have a corrupt Information Store? I assume that the version of NTBackup bundled with SBS is Exchange-aware but, historically, it does not seem to be very robust. If the aforementioned is true, what can I do to repair the Information Store?
gbrookeAsked:
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VahikConnect With a Mentor Commented:
it is most likely u have a hardware problem......check this article and see if it applies to your situation
http://support.microsoft.com/?id=810411
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gbrookeAuthor Commented:
I will have to set some time aside to perform the tasks suggested in the MS article. I will report back with the results. We are looking at doing this on 7/25/06.
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