I inserted a smart table from Xara.  I got a message that said this format is no longer supported.  I deleted the table and then when for example I try to edit some text, I get a new error message 30660.  I can hit OK and the message goes away, but everytime I continue to do some editing the error appears again.  The program is still working, but is  there a way to get rid of the error.  Has the file been corrupted?