problem of 3d display refresh

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<DIV>Hi there,</DIV>
<DIV>&nbsp;</DIV>
<DIV>We finished our project in which we use Visad to realize 3D display. But 
there is a problem. when we click display on/of button on control panel or 
switch to another JFrame, the 3D visualization does not return. I think this is 
may be a refresh problem, but I'm not sure.</DIV>
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<DIV>Our project can be accessed at <A 
href="http://152.8.113.149/geo/geo.jnlp";>http://152.8.113.149/geo/geo.jnlp</A></DIV>
<DIV>username: zhang</DIV>
<DIV>password: 111111</DIV>
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<DIV>(By the way, we use Java web start technology to launch the 
application)</DIV>
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<DIV>Have a good weekend</DIV>
<DIV>Jing</DIV></DIV></DIV></DIV></DIV></div><br clear=all><hr>Send and receive 
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