[namtih]

@Enigmach
Did you try to install the skin via the option "Install from zip file..."?
If yes, it will probably not work for most skins as the skins aren't adopted to the new Frodo version.
Please try the installation method 3 I've described above, where you have to manually unzip the zip-file.

@flangefrog
Yeah, sure it does. When just the skin is using 50 or 90% of the CPU, there isn't much power left for updating the library, artworks or other addons. Especially "Aeon MQ 4" was very, very slow and it took some minutes until I was able to revert back to another skin as the screens loaded very slowly.
But except " Vinci" neither of the skins broke my XBMC setup. As I said, you will just eventually need some time to revert back to another skin as the CPU is fully loaded and the menus are very slow to navigate back to the options menu.

But a proper BACKUP before start testing is also a good idea ;-)