I will try some of the suggestions. I will try and post my model when I get to a wifi connection sand can figure out how to post my model. Right now all I have internet connection is a iPad2. It will take a few days.

I've created a bunch of components in a model I'm working on. I made a copy of the current model and started editing the copy to make some changes. When I try to add a component from my model components it shows up as a "+" sign as I drag it into the drawing window but the component never shows up. How do I fix this so my components show correctly?