Adobe illustrator CS5.1 crashes while copy/move/cut any object/image/path

Hi All,

when i do any of the actions like copy/move/cut any object or path, adobe illustrator get crashed and closed immediately and it shows common windows error,

I have tried below options to resolve the error,

1. Changing preference

2. Re installing with the same version software

3. Re installing the with the lower version of software CS4

4. updated Graphics card driver

But nothing helped, please can anyone suggest to resolve the issue.

Thanks,