## GroupWise is unable to monitor... Office programs

When I try to edit shared Office document(xls, doc..) on GW8 I get this message:
GroupWise is unable to monitor 'C:\Progra~1\Office14\Excel.exe' and cannot automatically return it to the library when exiting the application.
To return the document, right-click on its reference in GroupWise, then select 'Reset document status'
I had Office 2003, tried reinstalling that but didn't work. Installed Office 2010, didn't work.
I've also reinstalled GW client. Problem comes up on some specific computers.

Any solution for this.