Why not show a diagram for new harvested model?

Installed a brand new Web Portal 9.x and I am able to harvest a model from ERwin r9.x to the Web Portal Server.  However, when I selected a model and clicked ER_Diagram, I got a blank screen and was not able to see the diagram and no error message appeared. Also, there is no problem to see the model in the Metadata Browser. Why?   

Solution:

There are two things to check:

1. When harvesting a model, in the Import Setup Tab, the value for the Import Diagrams field is set up as NONE which will not import the Diagram. You need to set it up as Current View or All.

2. If you do set up as Current View or All and are still not able to see Diagram, then it is because a proper Adobe Flash has not yet been installed on that PC.  You need to install or update Adobe Flash to the latest patch and then reboot the machine.  Then you will be able to see ER_Diagrams for the models.