Yea i would reinstall- if not put in a GM Ticket OR! Maybe its time for a better video card? Just depends - My laptop As of last monday, was only a little bit laggy when in 10 ICC - but 25 ICC Unbareable, so i went out spent 2,000$ on a new gaming desktop, which once its all fixed and put back together, ill hopefully be running 25 ICC with no issue. hopefully. (fricken better be or ill strangle someone) !ALSO- if you have been playing warcraft for the past 5 almost 6 years like i have you should know by now always the first 2-3 weeks of every BIG patch such as the BC>WOTLK patch or Vanil > BC always screws up the game for a nice amount of time.. Smae is going to happen with WOTLK>Cata, Its how blizzard buys time- atleast thats what i say! hehe So i would just wait it out and have patience!