可能是你配置不够
最低配置
操作系统:Windows®7 / Vista / Vista64 / XP / MAC
CPU:Pentium 4 3.0GHz
内存:1GB for XP / 2GB for Vista
显卡:DirectX 9 compatible video card with 128 MB, Shader model 2.0. NVidia GeForce 6600 , ATI Radeon X800 or better
硬盘:At least 7.5 GB of free space
声卡:DirectX 9.0c compatible sound card
推荐配置
CPU:Intel core 2 duo 2.4GHz
内存:1 GB for XP / 2GB for Vista
显卡:Shader model 3.0, NVidia GeForce 7600, ATI Radeon X1600 or better
设置下窗口模式看看。