7.0 to 7.0.1 - "View Mail" broken in admin console

[CSVantage]

An otherwise smooth upgrade.

When "View Mail" is clicked for any account that predates the upgrade, it is throwing a 404, with the following text in the body of the browser:

Not Found

The requested URL /service/preauth was not found on this server.
Apache/2.2.3 (CentOS) DAV/2 PHP/5.1.6 Server at www.mydomain.com Port 80

Accounts created AFTER the upgrade do not manifest this problem.

Anyone else experience this issue, or know how to fix it?

Thanks,

CSVantage

ETA --- It seems to be referring the /service/preauth not to the zimbra server but to "www" which is a server I do have but is unrelated to zimbra. It's that referral URL that is used with "View Mail" that I need to find and fix. When I manually replace that bad server name with the correct one for Zimbra, it does bring the account up.