Hi
may be its your hardware problem
minimum requirement is
* Windows XP / Vista
* 1.6 GHz Processor
* 512 MB Available System Memory
* 128 MB DirectX 9 Compliant 3D Video Card
* 2 GB Available Hard Disk Space
* DirectX 9.0c
For windows7
* Requires: Windows XP (32-bit), Windows Vista, or Windows 7
* Microsoft .NET Framework Version 2.0
* 1GHz Processor
* 50 MB Available System Memory
* 100 MB Available Hard Drive Space
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