Java Development Tools

My project is not using any external tag libraries. It is based purely on ADF core/html and JSF core/html components. The design time view does not show the appropriate presentation, everything is shown as nexted frame containers (I suppose how you would show a component that does not have a visual representation).

If I create a new project and copy my jsp (jsf) pages over they show perfectly. I did this activity and all was going well in the new project and then I lost the design time view again. I cannot tell you what I did to cause the issue, maybe it was a modification to the web.xml as has been suggested in some other threads. Can anyone tell me what I should be looking for that causes this problem, what corrective actions I might take to eliminate the issues