java.lang.NumberFormatException: For input string: "null" Unable to open a link in WebCT CE 6.0.
 
 
HelpInfo
Unable to open a link in WebCT CE 6.0.
Cause of Problem

The problem occurs if the Pop-up blocker or Anti-Virus program is enabled.
Solution Summary

Open Internet Explorer. From the 'Tools' menu, select 'Pop-up Blocker'. Click 'Turn Off Pop-up blocker'. From the 'View' menu, select 'Toolbars'. Disable the additional toolbars. Open the Anti-Virus software installed on the computer. Disable the Anti-Virus software.
Solution Details

Pop-up windows are smaller than the browser window and appear on the screen when a link is clicked or a new browser window is opened. Many programs uses pop-up windows. Anti-Virus programs are used to protect the computer against virus threats. At times, the pop-up windows are blocked by pop-up blocker or by Anti-Virus program.
To resolve the problem:
1) Open Internet Explorer.
2) From the 'Tools' menu, select 'Pop-up Blocker'.
3) Click 'Turn Off Pop-up blocker'.
4) From the 'View' menu, select 'Toolbars'.
5) Disable the additional toolbars.
6) Open the Anti-Virus software installed on the computer.
7) Disable the Anti-Virus software.
Applies to Software Version

WebCT 6.0