As I continue to learn new things in ABS 2007 I am sharing with you all. I discovered this awhile back and thought it might be a good item to post out here for you all.
Yellow warning boxes around Room names/numbers:
A yellow box with a slash through over the room name/number tags it will appear if you have unloaded the Arch’s xref that has the spaces in it that your tag is referencing.
This is because the tags can no longer find the spaces they are associated with.
In order to get rid of these warning boxes you will have to reload the Arch’s xref.
Save the drawing.
Close the drawing.
Open the drawing back up.
You can not get rid of them by running a "regen", you HAVE to exit the drawing.
Or atleast this is the only way that I have found so far to take care of this issue.