IIS Pass-through Identification Fails

I'm trying to configure OWA for Exchange 2007 SP1 and am having issues with no images being displayed when I connect.  

When I go to test the connection to the physical directory, it authenticates, but it will not authorize and I get the following error:

The server is configured to use pass-through authentication with a built-in account to access the specified physical path. However, IIS Manager cannot verify whether the built-in account has access. Make sure that the application pool identity has Read access to the physical path. If this server is joined to a domain, and the application pool identity is NetworkService or LocalSystem, verify that <domain>\<computer_name>$ has Read access to the physical path. Then test these settings again.

I specifically gave the computername$ read access to the physical path, but I keep getting these errors.  I can connect as any other user (since I gave "Everybody" read access) but not with pass-through identification.  I also gave "NetworkService" and "LocalSystem" read access to the physical path.

The application pool identity that is authenticating (and I assume is the same thing that won't authorize) is:

Who is Participating?
Jonny98Connect With a Mentor Author Commented:
Apprently since nobody has any advice, it just must be that Microsoft sucks.
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