I can confirm that plans created from scratch with 10.06a still have the "LIVING AREA" virus as well as a "DECK" virus. As somebody else reported, these seem to be triggered when you create a gap in the exterior walls that bound your structure. I've also seen the "DECK" label be duplicated when I moved a deck rail in a manner that created a gap. I'm starting to get in the habit of moving exterior walls in a manner that never breaks the perimeter but the trick of changing the label color sounds promising too. I assume the background should be set to transparent to avoid masking something that might just happen to be behind the unwanted label.