So sorry to hear that the DVD is giving you problems. It is a known issue. Please contact Dennis McGonagle; we keep his email on our contact page at https://www.crishdesign.com/contact.html
He will arrange for a new DVD to be sent to you.
I will also give him this link.
Please email me thru that link if all else fails, but the publisher has a stack of replacements in stock! – Trish