by Axel on Fri Aug 17, 2012 10:51 pm
D800 is supported, and Windows 8 Desktop too. What is not supported (for any non-Microsoft WIC codec anyway) is WinRT/Metro-style/Windows 8-style applications. Not because of a limitation of the FPV codecs, but Microsoft apparently blocked all 3rd-party codecs in WinRT, at least in the first release.
You should try uninstalling and reinstalling, perhaps there is something wrong with the setup on this machine, and D7000 files appear to work because their thumbnails were still cached in the system's thumbnail database?