FreeBSD 5.4 Release AMD64 (installation CD) boot fails

[Simeon Nifos]

Dear list,
Booting from the AMD64 installation CD of 5.4 Release,
hoping to install it I was suprised to see that it
stack
after Beastie-menu! It didn't want to boot no matter
if I tried "Boot with ACPI Disabled". Any ideas how to
fix 
this problem? I had the same problem on an Opteron
QUAD 
with a TYAN S4882.

Regards!
Simeon!

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