Saw your original post here http://forums.adobe.com/message/4803932#4803932 and now this one.
Moved from the Creative Cloud to the Muse forum. They will be able to help you here.
An Adobe employee on the Muse team will be able to confirm whether or not Muse is Windows 8 compatible. It might be that the http://www.adobe.com/support/OScompatibility.html link is not up-to-date for Muse.
