I had a huge problem with Lag in the game for over a month. I did every suggestion on the websites to try and get rid of it. I finally found out that my windows media player was hogging all the resources. I went into "services" and shut off windows media player. This may have been a fix for me only but I wanted to pass it along in case it helps any one else. I have a very high end machine and ever since I've been able to run everything on max settings with no issues. Hope this helps.