Buy license still shown after proper registration

[Drafting]

After we had problems with PDF Xchange viewer I installed PDFexchangePro demo. It solved the problem ( was that with the different penwidth) and we decided to buy the package. To my clients disappointment the Demo badge is still shown if I reprint a part of the pdf with the PDFexchange printer driver. If I print with Bullzip printer driver it does not show.
The pdfXchange viewer shows our license key.

I reinstalled the software but it didn't help.

Can I delete something in the registry to avoid this annoying condition? Customer was upset. We paid and it still shows DEMO, he screamed.

Regards

Lutz

[John - Tracker Supp]

Please email support@pdf-xchange.com (pls dont post here) with your serial number and we will advise further.

Thanks