Hi dude, check this post and let me know if ok.
http://mygaming.co.za/forum/showthread.php/25513-Battlefield-3-PC-discussion-thread-MK-II?p=796001&viewfull=1#post796001
http://mygaming.co.za/forum/showthread.php/25513-Battlefield-3-PC-discussion-thread-MK-II?p=796001&viewfull=1#post796001