IE problem, Iframe embeded Java applet crossbrowser verification

Hi there we have problem with our web application we're displaying 360s through it and it requires an applet called ptviewer.jar everything has been working great over the last couple of years but now we're getting into insertion of our viewer into iframes... the problem is that if your in IE this is what happens

<page master "client site">
       <iframe > our viewer off our server  

in ie the iframe is being ignored and the applet is validating cross domain check againts page master rather then our iframe src... so we're getting cross domain security errors... work perfectly in firefox ( what a surprise ) but not in IE.... any help or pointers would be great. Thanks
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Can you post the code or a link to the page please.

VFM-TechAuthor Commented:
We actually just solved the problem... we didn't include codebase in the applet tag the issue is now resolved.

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