Reggie,
From the 5744 FAQ.
Bill F.
"Reggie Burnett" <somebody@somewhere.com> wrote in message
news
57E4DE7-26AC-4AB7-B513-8AA27EAD0386@microsoft.com...
>> Upgrades from Vista RC1 are valid.
>> Upgrades from Windows XP SP2 are encouraged.
>> Upgrades from any other build are not supported or recommended.
>> 5728 to 5744 is not supported.
>
> How do you know this? Has this been officially posted?