hi guys, first of all i'm newbie here, my rig is a52j , just bought last pc fair for one & half week ago, as you all mentioned about the graphic problem, first time i'm install red alert 3 i'm also regret because the graphic is so out of my imagine, it's far than what i'm expected and have a plan to sold my asus a52j because the graphic not achive my expectation, after along search of the system, walao , it's true that default graphic card is intel how to change it to use high performance of nvidia geforce 310m cuda 1gb@Nvidia Optimus is so easy no need to upgrade the version of graphic card, just do this:
1.) right click on the normal screen - than select Nvidia control panel, when nvidia control panel pop up search for manage 3d setting than click it, 3d setting menu will come out, than click program setting first. than you will see 2.select the preferred graphic processor for this program, click and change from intel to high performance Nvidia processor after this step completed, now you can select or change what games preferre to use this nvidia graphic card. also after this step you can change the global setting change the graphic to high performance nvidia processor. now you can play any games, for my red alert 3 i'm set it to ultra high graphic, no lag or slow occur, graphic so beautiful..now i'm really satisfied with my rig, love em so much(haha my girlfriend so jealousy to my lappy coz i'm love it more than my girlfriend, just kidding guys, haha, don't tell my girlfriend ok,hihihi, ..thumb up, Asus is the best ..