Unable to open new form with InfoPath 2010

I have a Microsoft InfoPath form which I can open without receiving any errors with InfoPath 2007. But when I tried to open the form in other computer with InfoPath 2010, I got an error stating that the InfoPath cannot open a new form. Can someone please help me with the problem I am encountering? Thanks.

InfoPath cannot open a new form.
There was an error in the calculation code.
InfoPath
Your user name cannot be verified because the form's security settings do not permit it.
Error occurred during a call to property or method 'get-UserName'.
