Hi Steve.

However, if I delete the nav class from the
form, then drag it on again, from project designer, where the classes are, then all is well
again.??

This is not a bug < s >. Let me guess. After you drop the nav class on a form, you might change somethig, like the spacing between the buttons or some other property. Then you go to the class and change this same property.

The reason you do not see the changes in the instance is that the default has already been over-ridden. You would see the changes you made in you composite class immediately reflected on the form if you left everything in the nav bar on the form set at its default value.

I know this sounds a little confusing < s >. I hope that I managed to make this clear enough.