Unfortunately, I don't think enough of us Users have voiced the concern to make it priority, although it can certainly create a liability for users when sensitive information may be exposed - and that, that should be enough.
@KitLdn Thanks for the info. It does look like this is a limitation of very specific hardware, where the display adapter is attached to the mother board. Unfortunately we have no way to force the blanking feature in this environment.
But screen blanking was working before on these machines. I made this clear to tech support. And the response was: 'it shouldn’t have worked'
If LogMeIn have released updates that are not compatible with all-in-one computers, then this should be made very clear in the minimum system reequipments information so consumers do not end up buying a product that does not have the functionality that it promises. The features have been misrepresented.