Java SE (Java Platform, Standard Edition)

After an upgrade to XP and Java 1.6 one of our intranet apps is experiencing a problem when running a java applet in the browser. The java applet is a document editor and accepts a parameter to where the document is located. I assume it copies this file to the users machine for editing. I wish I knew more but I don't have the source...dam!

we are getting a java.io.IOException on a machine running XP-IE6-Java 1.6. This problem doesn't happen on our older Win2K-IE6-Java 1.3 so we are certain its isolated to the desktop and not the server (99% sure anyway).

A little info: If you try to run the applet twice in a row, it works the second time. The first time it fails. Also, the error message box appears BEFORE the orange java loading logo appears embedded in the browser.

I have also entered in the following information into the policy file and reloaded the policy file via the console.

grant codeBase "http://intranetserver/*" {
permission java.security.AllPermission;
};

here is a dump of the stack trace. Thanks for your time :-)

java.io.IOException: Write error
    at java.io.FileOutputStream.writeBytes(Native Method)
    at java.io.FileOutputStream.write(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.read(Unknown Source)
    at sun.net.www.protocol.http.HttpURLConnection$HttpInputStream.close(Unknown Source)
    at com.docscience.dlstools.browser.editor.HTMLDocumentLoader.loadDocument(HTMLDocumentLoader.java:94)
    at com.docscience.dlstools.browser.editor.HTMLDocumentLoader.loadDocument(HTMLDocumentLoader.java:113)
    at com.docscience.dlstools.browser.editor.HTMLDocumentLoader.loadDocument(HTMLDocumentLoader.java:126)
    at com.docscience.dlstools.browser.editor.dsBrowserEditor.loadPage(dsBrowserEditor.java:1623)
    at com.docscience.dlstools.browser.editor.dsBrowserEditor.loadFile(dsBrowserEditor.java:1873)
    at com.docscience.dlstools.browser.editor.dsBrowserEditor.(dsBrowserEditor.java:201)
    at com.docscience.dlstools.browser.editor.DLSBrowserEditor.init(DLSBrowserEditor.java:38)
    at sun.applet.AppletPanel.run(Unknown Source)
    at java.lang.Thread.run(Unknown Source)