Media Center 2005

I'm installing Windows XP Media Center Edition 2005 on a spare PC, mostly to see if it will work... the PC has an ATI card that supports HDTV resolutions, and I have the ATI DVI to Component adapter, and it'll be great if it "just works".

But during the install of XP MCE, it prompted me to "Insert the CD labelled 'Windows XP Professional Service Pack 2'".  I don't have a CD with that label.  Hmm.

Turns out according to this article that it's really asking you to insert CD 1 again.

How does this stuff make it past QA?