Bad site URL name - microsoft.public.sharepoint.portalserver

Message from discussion Bad site URL name
Thread-Topic: Bad site URL name
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From: =?Utf-8?B?RXJpYw==?= <eri...@nospam.nospam>
Subject: Bad site URL name
Date: Tue, 30 Jun 2009 15:17:01 -0700
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Path: g2news2.google.com!news4.google.com!feeder.news-service.com!weretis.net!feeder1.news.weretis.net!TK2MSFTNGP01.phx.gbl!TK2MSFTNGHUB02.phx.gbl


It looks like one of our site owners changed the web site address to whatever 
it was plus .aspx.  This has rendered the site unusable.

Here's where I believe the change was made:
Site Settings > Title, Description, Icon
Web Site Address (change it to something .aspx)

How can we change it back?

Thanks!

Running MOSS Enterprise SP1 + Infrastructure Update