I cannot update my version of Hawkeye. When I put my old reg# in the program detects it as invalid. Can you help, please?
If you have problems with the Hawkeye, then I suggest you to use the available email address firstname.lastname@example.org to contact the developer. Additionally, use the official information which explains how to update the product but since you have a problem with the registration number, contacting them is the only solution viable.