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GradeBook Won't Launch - Clear Java Cache

posted Sep 29, 2008, 8:11 AM by Lawrence Esplin   [ updated Oct 1, 2008, 11:52 AM ]

Windows

  1. On the client workstation, exit PowerTeacher Gradebook.
  2. Navigate to Control Panel > Java. The Java Control Panel appears.
  3. Select the General tab.
  4. Click Settings under the Temporary Internet Files section. The Temporary Files Settings dialog appears.
  5. Click Delete Files. The Delete Temporary Files dialog appears.
  6. Select both checkboxes, and click OK.
  7. Close the Java Control Panel.
  8. Launch PowerTeacher Gradebook.

Mac

  1. On the client workstation, exit PowerTeacher Gradebook.
  2. Navigate to Applications > Utilities > Java.
  3. Open Java Web Start.app. The Java Application Cache Viewer appears.
  4. Select the User tab.
  5. In the Application column, select all PowerTeacher Gradebook listings.
  6. Click Remove Selected Application.
  7. Close the Java Application Cache Viewer.
  8. Launch PowerTeacher Gradebook.

Client Java Configuration Issues for PowerTeacher Gradebook

I have verified that Java is enabled in the browser, but PowerTeacher Gradebook will still not launch.

Ensure that Java 1.4.2 or 1.5 is loaded on the machine. If Java is not present, download Java 1.5 here: http://java.sun.com/products/archive/j2se/5.0_11/index.html
Note: Be sure to download Java 1.5 (Java 1.6 is not yet supported).

I have verified that the machine has the latest version of Java, and that Java is enabled in the browser, but PowerTeacher Gradebook will still not launch. Why?

Upgrade to the latest version of the browser. Some older versions of Firefox, Internet Explorer, and Safari may encounter problems with launching PowerTeacher Gradebook. Upgrading to the latest version of the browser will ensure correct operation. If PowerTeacher Gradebook still does not launch, contact customer support.

I accidentally upgraded the teacher's machine to Java 1.6 rather than Java 1.5. Is that a problem?

The teacher should not experience any issues using Java 1.6. Java 1.6 will not work on the server, but the teacher's local machines should not have a problem.  If you experience a problem with Java 1.6, uninstall it and install Java 1.5.

When attempting to launch PowerTeacher Gradebook using the Safari browser, a generic Java Launch symbol displays, with nothing to click on. How can I fix this?

If Java 1.4.2 or higher is installed on the client machine running an up to date version of Safari, then this might mean you have a problem with your Java Launch Service. Use the following procedure to reset launch services.

Reset Launch Services under Tiger

  1. Quit all running applications.
  2. Trash the following two files in the Macintosh HD > Library > Caches folder: com.apple.LaunchServices-0140.csstore
    com.apple.LaunchServices-014nnn.csstore
  3. Type your Admin password if prompted to authenticate the deletion of these files.
  4. Restart your Mac.
  5. Log in to the affected account.
  6. Empty the Trash.
  7. Attempt to re-launch gradebook.
  8. If the problem persists, trash the com.apple.LaunchServices.plist file in the Home > Library > Preferences folder of the affected account.
  9. Repeat steps 3-7.

Reset Launch Services under Panther

  1. Quit all running applications.
  2. Trash the com.apple.LaunchServices.6B.csstore file in the
  3. Macintosh HD > Library > Caches folder.
  4. Type your Admin password if prompted to authenticate the deletion of this file.
  5. Restart your Mac.
  6. Log in to the affected account.
  7. Empty the Trash.
  8. Attempt to re-launch PowerTeacher Gradebook.
  9. If the problem persists, trash the com.apple.LaunchServices.plist file in the Home > Library > Preferences folder of the affected account.
  10. Repeat steps 3-7.

Reset Launch Services under Jaguar

  1. Quit all running applications.
  2. Trash the com.apple.LaunchServices.plist file in the Home > Library > Preferences folder of the affected account.
  3. Trash the com.apple.LaunchServices.UserCache.csstore file in the Home > Library > Caches folder of the affected account.
  4. Restart your Mac.
  5. Log in to the affected account.
  6. Empty the Trash.
  7. Attempt to re-launch PowerTeacher Gradebook.
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