P: CS5 - cannot identify second brush tip in Dual Brush

Program: Photoshop CS5
Problem: identification of second component brush tip in a brush that has a Dual Brush feature. In CS5, highlighting "Dual Brush" in the Brushes Panel does NOT show which brush tip is the second component brush. In other words, you cannot check what the second brush tip is in any brush that uses the Dual Brush feature. When you highlight the Dual Brush setting in the Brushes Panel an icon for a brush on the right should be highlighted with a black border indicating that it is the second (or "dual) brush tip. This applies to existing brush presets and to ones you have just created.
Strangely, this is NOT a problem in CS4 which seems to function perfectly in this respect.
Please fix this.