Problem with shape fills

This is one of those annoying and frustrating problems that probably has a simple answer…

Sometimes after drawing a shape with the pen tool, Flash won’t let me edit the fill color. For instance, just now, I drew a shape, selected it, and then clicked the fill color swatch (in which no color was selected initally, indicated by the red slash in the swatch) in the Properties panel and nothing happens. The color selector panel doesn’t open… But I can edit the stroke color… Don’t seem to have this issue when using the shape tools… Also, sometimes I CAN edit the color.

I guess I just have a setting wrong?

Using CS4