Sun Java Runtime Environment Errors

Some users have reported problems using WebCT with Microsoft Windows and some versions of the Sun Java Runtime Environment (JRE).Possible causes include using an incompatible version of Sun JRE or having multiple versions of Sun JREs installed. Some users have found that their problems are resolved after uninstalling all versions of Sun JRE from their computers, and then installing an earlier version, like Sun JRE 1.4.2_09.

1. From the Start menu, select Settings, Control Panel.
2. Double-click Add/Remove Programs.
3. Locate all versions of Sun Java, JRE, or JVM.
4. For each version, click Change/Remove and follow the onscreen instructions.
5. Download Sun JRE 1.4.2_09.
6. To install the JRE, accept the license agreement and follow the online and onscreen instructions.

After installing the JRE and rebooting your computer, do not download updates for the JRE. Disable automatic checking for Java updates:

1. From the Start menu, select Settings, Control Panel.
2. Double-click Java Plug-in.
3. Click the Update tab.
4. Clear the checkbox next to Check for Updates Automatically.
5. Click Apply.
6. Click the "x" to close the Java Plug-in Control Panel window.