I just started using JGraph (mxGraph) for Java for visualization of data models. The Hello World example provided with the JGraph download works perfectly when run on its own as a Java Application. The Vertices and Edges are movable by clicking and moving on the graph. But when I do the same thing inside DialogWrapper or a JFrame dialog, everything works perfectly (as far as I checked) except the fact that the Vertices and Edges are not movable. I can resize them, connect the vertices, but I can't move them. Any IDEA ?