My AutoCAD Architecture 2013 has encountered a problem

Hi,
My AutoCAD Architecture 2013 has encountered a problem. From the command line, whenever I tried to copy some text I got this error message. Look at the screenshot. The same error message is also applicable for the command Paste.
After system restarting I found it solved for a few moment.
However, I got no permanent solution. I reinstalled it but no result. Please help me to solve the issue.

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AutoCAD Error Aborting:
FATAL ERROR:Â Unhandled e0434352h Exception at 75c7d36fh
