Office Install Fails - Proof.cab not found

Given:
Fresh install Windows XP Pro with SP3
Office 2007 Pro

Symptom:
Office 2007 Pro Install Error Message:
"Setup cannot find Proofing.en-us\Proof.es\Proof.cab"

When I go to the specific directory and click on it and retry I get the
error message "Invalid location". If I retry from a parent directory (IE:
\Proofing.en-us) I get the same "Invalid location" message.

I can see the appropriate files on the CD. Trying something else I attempted
to copy the parent directory (Proofing.en-us) and all contents to the C:
drive. I was then going to try to specify that as the place to look for the
files. All files copied except for \Proof.es\Proof.cab which gave a CRC error.

I have not had a problem when I installed Office 2007 in the past.

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JHAlderdice