sysprep / unattend.xml error with Windows 7

Hello -  
I'm perplexed by a sysprep error that I get with a particular unattend.xml file.  Here's some background information:  I built a Windows 7 64bit image for work...  The original unattend.xml file was from a 32-bit windows 7 machine and all I did was go through it replacing any reference to "x86" with "amd64".  Using this unattend.xml file, the 64-bit machine I built syspreps wonderfully.  Me being me, I decided to create a new unattend.xml file using a 64bit version of Windows System Image Manager on another machine, during which is asked me to associate the file with a new wim/clg file - which I did.  Now when I run sysprep, the process bombs out during the "specialze" phase with the following error:
"Execution of unattend GCs failed, hr=0x0 pResults -> hrResult=0x8030000b....  

Anybody have an idea why this is happening?

Thanks - Adrian
adrian roeMicroComputer Specialist IIAsked:
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Matthew ParsonsDirectorCommented:
Hi Adrian,

Are you using MDT to assist with the deployment of images?
adrian roeMicroComputer Specialist IIAuthor Commented:
Hi Matthew,

No I'm not.
adrian roeMicroComputer Specialist IIAuthor Commented:
I am using Symantec's ghost
Matthew ParsonsDirectorCommented:
HI Adrian,

I haven't used Symantec Ghost for a long while since we started deploying Windows 7. I would highly recommend MDT, it's free to setup and its great for imaging the same image on to multiple PCs no matter the hardware, you can inject the drivers etc.

However i did find the following article which may assist with the problem you've had.

Thanks Matt

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adrian roeMicroComputer Specialist IIAuthor Commented:
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