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DataViewer Troubleshooting

 

This page might help you out if you are having trouble using our Dataviewer applets. An applet is a program, written in the Java programming language, that can be run from a web browser.

In theory, our applets will work on any computer with an Internet browser that supports Java version 1.1 or better. This includes Firefox and Internet Explorer browsers.


Which version of Java are you using?

Here is a small Java applet that will tell you:

You are not running Java. It is either not installed, or it is disabled. Follow the instructions below to get it running.

 


Interpreting the results:

If the applet reported that your Java Version is less than 1.1 :

You will need to use a different browser. For example, the JVM included with Netscape 3 only supports Java version 1.02. Our applets rely on some features that weren't introduced until later. They have been tested on Netscape and Internet Explorer browsers, versions 4 and higher.

If you see a message that starts out with "You are not running Java...." -- or you see nothing:

either -- Java is not installed on your browser:

If you need to install Java you can find it at Sun's website.

or -- You need to enable Java:

Look for this option somewhere in the preferences settings of your browser.

Firefox:

  • Go to Tools >> Options... >> Content
  • Check "Enable Java".

Internet Explorer (using the MS JVM):

  • Go to Tools >> Internet Options >> Security >> Custom Level...
  • Scroll to Java VM.
  • If Disable Java is selected, you will need to change it (our applets will run with the "High safety" setting).

Internet Explorer (using the Sun JVM):

  • Go to Tools >> Internet Options >> Advanced
  • Scroll to Java (Sun)
  • Check "Use JRE

If the applet reported that your Java vendor was Netscape Communications Corporation and the Java version is between 1.1.0 and 1.1.3 --

It's time for you to upgrade your browser!

If the applet reported that your Java vendor was Microsoft Corp and it reports your MS JVM build # is less than 3810 --

Build # 3810 is Microsoft's most recent (as of April 2003) version of the Java virtual machine that is used by Internet Explorer (version 4 or higher) on Windows computers. You should update if you are using an earlier version of the JVM because Microsoft has fixed a number of bugs, and filled some security holes that were found in the earlier builds.

Click on Tools >> Windows Update in the IE menu. If you then select Product Updates a list will be generated that describes the upgrades that are suggested for your system. One of the choices will be for the Virtual Machine. Select this item, and follow the instructions to install it.

Microsoft is no longer including their JVM with IE -- go to http://www.microsoft.com/mscorp/java  for details. If your computer needs Java you can install the JVM from Sun.