From: Mike N. 

On Fri, 13 Apr 2007 08:46:59 -0400, "John Beamish"
 wrote:

>On the one hand:  If the warning says the bios is for Vista only, why
>install it, boot to XP and then wonder why things don't work?
>
>On the other hand:  a bios tied to Vista?

   One explanation I've heard is that Vista uses it as part of the WGA
scheme.    That still doesn't explain why it would work for a while, then
go into lockdown mode.    More likely an integrated TPM that kicked in
after not being tickled by the OS.

  DRM strikes again!

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