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There are several reasons why some of the applets may not be working for you.
- To see all of the Applets, you will need the Java Plug-in.
You can download this from the Sun Microsystems web site
- Your problem may be caused by not having Java enabled.
There is a quick and simple remedy for that
- If your problem is not Java-related, then we are probably
at fault. Call us (Lee 330-672-2257, Schmidt 480-965-8240). You
need not tell us your name but just tell us that you are a reviewer and
what the problem is. Alternatively, send e-mail to
Dr. Duncan McBride at NSF
and he will convey the problem to us.
- While all the Applets work, they are not entirely
without glitches and the occasional bug. (They are not all ready
for release.) If an Applet mostly works, it may be that we just
did not finish that particular functionality. This is true of
the read, write, print features of a number of
Applets, especially those produced under the Java 1.1 release.
- Another problem may just be the download is not complete.
Some of the downloads can take minutes over a slow connection
and the applet does not necessarily tell you that it is downloading
additional files. If a download gets interrupted, it can also
leave a browser in a nonfunctional state. Worse yet, the
local cache may contain the corrupted download file and
trying the download again will fail. To start with a completely
fresh system, you need to clear the cache and restart the browser.
- Another problem we have experienced is that Java2 applets
understand when they are referenced on a password-protected site.
As a result, they bring up a password dialogue box, even though the
username and password have already been entered. Sometimes this
dialogue box can be lost behind the applet window and the download
seems to simply hang forever. If you close the applet window,
you may be surprised to find a password dialogue box waiting
- Finally, one way of circumventing some of the more mysterious
problems is to use a different browser. We have tested our site
with Netscape Communicator, Internet Explorer and the Lycos Browser.
We recommend Netscape.
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Michael A. Lee and Kevin E. Schmidt
July 1, 2000