I used to have a nice blue strip across the top of any active window. It is now grey, which I find depressing and it is no longer possible to see when a window has gone inactive. How do I get my blue back? I tried downloading Firefox colors but when I tried to use it it wouldn't load, I waited and waited then gave up. I cannot take a screenshot of the strip I am talking about as is it outside the screenshot field. (Above it.) Many thanks, Kitty