I am really starting to think Microsoft are TRYING to make x64 an all out flop. See it wasn't all that bad, untill 5472 came along. 5472 x86 is an absolute dream. X64 is like the spawn of satan on your computer screen, it's HORRIBLE. In their infinite wisdom, MS started requiring drivers to be signed in x64 versions of vista. In previous builds, this stupid feature could be turned off by means of the command "bcdedit /set nointegritychecks ON". Well if you do the mentioned command in 5472, it will take but it won't actually disable the need for signed drivers. And Microsoft, I am NOT going to hit F8 on every damn bootup. From what I hear they are going to be removing the F8 feature too.
So with that mentioned I think it is our responsibility to let Microsoft know that this is NOT what we want. I am tired of Windows being catered to idiots, if I want to run unsigned drivers then I will. It is my computer, STOP telling me what I can and cannot do with it.
I say all testers who are not satisfied with this, STOP TESTING X64. This will send a message to MS as they need all the feedback they can get on the x64 SKU's. If noone tests them, and Microsoft doesn't disable the driver signing requirement, then they will look pretty stupid when NOTHING works on x64 and x86 is smooth as butter :).
So Microsoft, stop trying to make the x64 transition so damned impossible, and give the power users control of their systems back. Give us the ability to disable the signed driver checks. Untill then, I will NOT test a single x64 build from here on out, I'll do x86 all you want though :).