I tried the simple page you linked and on linux ubuntu 12.04 and firefox latet
version works fine. It can be a problem of Jva on ur PC maybePino
----Messaggio originale----
Da: ema...@microbio.umass.edu
Data: 31/01/2013 21.35
A: <jmol-users@lists.sourceforge.net>
Ogg: [Jmol-users] Windows: Java 7 very sluggish
I find that Java 7 (1.7.0_11) on Windows is very sluggish. So slow that
it could well drive away most users of complex Jmol pages (e.g.
Proteopedia, FirstGlance in Jmol).
Even on a very simple page such as
http://jmol.sourceforge.net/demo/trace/
it takes a couple of seconds for the radio buttons to work.
In FirstGlance in Jmol, each button/link change of the molecular view
takes about 5 seconds, during which nothing happens. This encourages
users to click again and again, backing up stacks of operations that take
even longer to complete.
FirstGlance has zoom up/down buttons that use zoomto. In Java 6, this
produces a smooth transition as the molecule gradually grows or shrinks.
In Java 7, the transition is very jumpy at best, and at worst, is
entirely lost -- the final result simply appearing suddenly after a few
seconds.
(Incidentally FirstGlance has not worked in Internet Explorer 9 for
months. I have now developed a fix but it is not yet released. It works
in Internet Explorer 8, Firefox and Chrome on Windows.)
On my Windows 7 virtual machine, when I revert to Java 6 (1.6.0_38), all
operations in Proteopedia and FirstGlance are instantaneous, and the
zoomtos are smooth.
Go to Control Panel, Programs, Java to open the Java Control Panel. Click
the Java tab, and then the View button. All installed versions of Java
are listed. If you still have a 1.6 version installed, you can simply
uncheck 1.7 to disable it. Click OK twice and restart your browser.
Suddenly everything works so much faster!
If you don't have 1.6 installed, you can install it (being aware it has
significant security risks!). Go to java.com, click downloads, then
"see all java downloads", then "looking for java 6?",
then "java 6 downloads page". Click on the Windows Offline link
to download an exe installer file.
Because of the security risks in java, one strategy would be to use your
favorite browser (e.g. Firefox) for most browsing activity, disabling
java in that browser. Then use a different browser (e.g. Chrome) for
Jmol work, in which java is enabled -- but use it only for Jmol web
pages. As I understand it, the risk is when you visit a malicious web
page in a browser with java enabled.
Eric
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