So, my computer specs are: ATI Radeon HD5770, AMD Athlon 64 X2 Dual core, 4GB of DDR2 RAM, Windows 7 Ultimate. I think those should be enough to run The Sims 3 at least on medium settings without any lag. But it isn't like that in my situation. With the lowest settings Sims 3 fps drops to 30 and below while moving the camera in live play mode. That problem is only in the live play mode, but in the build & buy mode the game runs smooth. I do not understand what is wrong. Other games will run on ultra settings without any lag and fps drops, eg DiRT 2 I really need help. P.S I do not have any custom content. And confusing is the fact that with the highest settings game will run as good as with the lowest setting: fps drops to 30 and below in live play mode when moving camera. So changing setting to lowest does nothing.. Please help me.