Suggestion for indicating an empty list view or grid view?

Question

In my application I have three different gridviews on the main page. The contents of each of these sections changes so sometimes the first two gridviews are empty, other times only the middle gridview is populated, etc... This just leaves the headers for the empty gridviews showing and nothing else. It can look a bit odd at times.

So my main question is what is the best way to handle empty gridviews?

-When the gridview is empty would you display a message saying "no items found" where the gridview contents would be?
-Would you instead modify the gridview headers to say "no items found"?
-Other suggestions?

I am curious to know how other people handle this from a UI/UX point of view. 

Thanks.