Business View status issue

I created a couple of business views, one for our office and one for our datacenter. I added a shortcut in each of the views to the other map. Everthing was looking good for several days but overnight, both views changed from green to yellow. I have checked the devices in each view and all devices are green and clear. The home page also shows a yellow icon for each of these views. I can't see anything that would have changed the status of these views. There are no alarms and all the infrastructure categories show green as well. I would like the views to be green again. Any ideas?

I am running build 6003 on Windows XP.

Thanks,
Doug