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Frequently Asked Questions

  • Q: Why does the file chooser appear to hang / slow down when choosing files to upload?
  • A: This is only a problem when using Microsoft Windows. This is acknowledged as a bug by Sun. JFileChooser can be unacceptably slow in windows XP (up to a minute to fill the window with the files). This only occurs for directories that have large zip files in them (5+ megs each). This is due to the integrated zip file features in Windows XP.
    To disable the zip support:
    regsvr32 /u %windir%\system32\zipfldr.dll
    To re-enable the zip support:
    regsvr32 %windir%\system32\zipfldr.dll
  • Q: I see the applet certificate dialog but then I just see a red 'x' on a gray background. How do I fix this?
  • A: The most likely cause for this is an out of date Java installation. Download the latest Java SE Development Kit (JDK) or Java Runtime Environment (JRE) from Sun.
    Ensure that your browser recognises the new plugins (usually automatic). If you do not have write permission to your browser's installation (e.g., when using linux) ensure the new plugin is linked to your personal plugin directory.
    For example, when using Firefox under linux, $JAVA_HOME/jre/plugin/i386/ns7/libjavaplugin_oji.so should be soft linked to ~/.mozilla/plugins/libjavaplugin_oji.so