I have a Dell XPS-18 w/two Dell ST2320L hd monitors using the Targus ACP70USZ. All three displays appear somewhat fuzzy since the upgrade to Win8.1. Just wondering if anyone else is experiencing similar issues with their setups. Admittedly, I didn't upgrade the DisplayLInk 7.4v software on my win8 os before upgrading to win8.1.(saw that suggestion afterward on their website). I have not noticed much of a performance issue yet, only the slightly fuzzy appearance all three displays(1920x1080)