Ok well what you did to fix yours isnt going to work on mine. I am not running dual cards I am running a nvidea geforce 5500 have never had these issues before. I did howerver upgrade to a dual core processor, if that makes any difference? I know it didnt make any difference in performace the issue remains characteristically the same (EXACTLY the same) no matter which tower I have plugged in and no matter what I do to increase performance of said tower. Out of game the towers handle animations flawlessly. Inworld screen update speed stays at once per 2 seconds PLEASE help.