Error when trying to access Help

When I click on a question mark help icon in SpamSieve preferences or select Spam Sieve Help from the Main menubar, I get an error that says “Internet connection required
The help topic you’re opening requires an Internet connection. Choose Apple > System Preferences, and then click Network to check your network settings and, if necessary, connect to the Internet.”

Well my Internet connection seems to be working as I’m logged into this forum.

This is with Leopard and SpamSieve 2.6.4

This is a known issue, either a bug in SpamSieve or in Leopard, depending on your point of view. The next version of SpamSieve will work around it. In the meantime, the SpamSieve Help is available in PDF form in the Help menu and also online.

This is fixed in SpamSieve 2.6.5.