Unable to activate Video Plugin

Hello everybody,
I've recently bought the video plug-in for Cross, but unfortunately I'm unable to activate it in my settings.
When I go to my preferences, select "Video", then I still get the advertisement of "buying" the plug-in.
I've also tried to re-install Cross, but it the problem stays te same.
Can anybody help me with this?
Thanks!
Angelo
I've recently bought the video plug-in for Cross, but unfortunately I'm unable to activate it in my settings.
When I go to my preferences, select "Video", then I still get the advertisement of "buying" the plug-in.
I've also tried to re-install Cross, but it the problem stays te same.
Can anybody help me with this?
Thanks!
Angelo