i have an ati x1600 pro silent and managed to install a retail leo and after enabling QE/CI video worked like sht....the best solution is to use PLEX media center for Mac OS X....now i run smooth divx and [email protected]'t try yet 1080p. on iatkos v7 and on my first attemps to install retail leo when i've installed the latest version of plex...0.8.1 ...i only had sound...to not have this problem install first 0.7.15..make it work and then update