Office1.cab present but not found

[jlimke]

While installing service pack 2 for Office, the
installation errors out in the setup withthe following
error message:

Source file not found E:\office1.cab

But when I pull up the CD's menu, the following file is
there, but grayed out or hidden: Office1.cab

How do I go about making sure the update program can find
it and I can proceed with installing the service update #2

Thanks