Hi Bd,
can I just ask about your install method. When you say clean install, did you install win 8 from disk? If so, how fast was it burnt? Anything faster than 4x will produce (or can) issues with the install.
Another thing to check for, is your install synced and 'trusted'? If you click on the settings charm then change pc settings, look under User's and you might have to 'Trust' this pc (basically validate it's you).