When I try to use Acrobat X, I get an error message saying "A problem has occurred with the licensing of this product. Restart your computer and re-launch the product. If this problem still occurs after restarting, contact Customer Support for further assistance, and mention the error code shown at the bottom of this screen. Error: 213:91?" Restarting the computer doesn't work. I appear to have Adobe Reader XI installed, is that causing a conflict? When I try to open a PDF or convert a Word doc to PDF, I get the error message above. Help! Thanks.
... View more