1) Where have you tried to paste the information?
This is because there are certain applications on windows that may not support the paste or a crtl V option.
2) Have you logged in as an administrator?
You may not have the permission by the administrator to perform some actions and paste could be one of the restrictions.
3) Are you trying to paste it on the desktop folder from word viewer?
If your answer is yes then follow the link below: http://support.microsoft.com/kb/166065
Try doing CTRL+C to copy rather than from the menu & CTRL+V to paste.
Waiting for your reply.