David, Video Deluxe Plus is a Magix product.

Did you get it as a filler when you updated a Xara product?
Xara would therefore never have any related Forum.
Steam has a 2020 forum: https://steamcommunity.com/app/1126560/discussions/.

It is nothing to do with Xara but I am sure some TGer will have an idea.

Acorn