DisplayEvent not emulating central click

We have changed the visad release recently. And when we did it the
emulation of the central button by pressing both buttons on the mouse
stopped working. It may be a driver problem or have you changed it lately.
If you haven´t would you be interested in the details of the
circunstances?

Thanks in Advance.

Andres David Acero M.
Universidad Nacional de Colombia Medellín
HidroSIGJava Programmer