Pragmatic

Sorry for the post I worked it out. Please disregard

I have only been using FM for a very short time, and I am sure this is an operational error, but I can't work it out. I have a couple of layouts where I have selected the alternate row color in the body, but it just won't show. Strangely I have a couple of other layouts in the same file where it is working. It is driving me mad. Any suggestions would be most appreciated.