Sounds like a Java problem. Which windows operating system are you running?

Sounds like you tried these tips? http://www.gnutellaforums.com/333278-post2.html
Did you actually run through the process of uninstalling Java & cleaning the registry before attempting to reinstall Java using the Offline version?

You use the Add/Remove control panel to install or uninstall Java.

You need to be logged in to the computer as an administrator to install Java & LW.