Problem with signed applet jar-file launching from jre1.5.0_04

During launching applet from ie I receive next exception in ie pop-up window(Warning-Security, Certificate not verified):

java.security.cert.CertificateException: Check leaf key usage failed in certificate

at com.sun.deploy.security.CertUtils.checkUsageForCodeSigning(Unknown Source)

at com.sun.deploy.security.CertUtils.checkUsageForCodeSigning(Unknown Source)

at com.sun.deploy.security.TrustDecider.isAllPermissionGranted(Unknown Source)

at com.sun.deploy.security.TrustDecider.isAllPermissionGranted(Unknown Source)

at sun.plugin.security.PluginClassLoader.getPermissions(Unknown Source)

at java.security.SecureClassLoader.getProtectionDomain(Unknown Source)

at java.security.SecureClassLoader.defineClass(Unknown Source)

at java.net.URLClassLoader.defineClass(Unknown Source)

at java.net.URLClassLoader.access$100(Unknown Source)

at java.net.URLClassLoader$1.run(Unknown Source)

at java.security.AccessController.doPrivileged(Native Method)

at java.net.URLClassLoader.findClass(Unknown Source)

at sun.applet.AppletClassLoader.findClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at sun.applet.AppletClassLoader.loadClass(Unknown Source)

at java.lang.ClassLoader.loadClass(Unknown Source)

at sun.applet.AppletClassLoader.loadCode(Unknown Source)

at sun.applet.AppletPanel.createApplet(Unknown Source)

at sun.plugin.AppletViewer.createApplet(Unknown Source)

at sun.applet.AppletPanel.runLoader(Unknown Source)

at sun.applet.AppletPanel.run(Unknown Source)

at java.lang.Thread.run(Unknown Source)

Though when I used jre1.4.2 applet loaded well.

[1721 byte] By [AndreyNea] at [2007-10-2 6:23:00]
# 1

when loading a pogo game before java can load i get kicked off line. aol is my server. i uninstalled java and tried to reinstall and java web site kickd me off too. i restored my pc to previous day to get java back. ive cleared all to be cleared checked all java enabled. nothing works for either java web page or pogo loading any game . please help this is day 17.

jennyheba at 2007-7-16 13:24:49 > top of Java-index,Security,Signed Applets...