Don't be too fast to complain about Microsoft. It Looks like some OEM (like HP) have shipped their INTEL and AMD based computers with the same Windows XP image. This is not a recommended config.
Jesper M. Johansson as an excellent post on his blog about this problem and how to fix it.
[May 19, 2008] Microsoft issued a technical note about this problem : http://support.microsoft.com/kb/888372/en-us