You need a powerful card for 3d.I have a GTX 260 and I can play 3d on all games except metro 2033 which is too demanding so I play it at high.My resolution is 1680X1050 and based on the observations from my 260 I can say that your gtx 240 can never use 3d in any game at 1680X1050.If you want 3d that much you will have to lower your resolution to 1024X768.1680X1050 and up with 3d is all about the high end cards