菜单模糊看不清，进入游戏后人物对话时点的头像也是模糊的，也很卡，我已经调低了画面设置了，怎么回事啊？
我的配置
System: Microsoft Windows 7 专业版 Service Pack 1 ( 6.1.7601 )
CPU: Intel(R) Core(TM)2 Duo CPU T6400 @ 2.00GHz
Sound: ATI HDMI Audio
Sound: Realtek High Definition Audio
Network: HUAWEI Mobile Connect - 3G Network Card
Video: ATI Mobility Radeon HD 3400 Series ( 8.850.0.0 )
VideoRAM: 256MB
DirectX: DirectX 11
SoundVersion: 6.00.0001.6363
