Sir Roger -

When you install SP2, it adds a new "line" in your Control Panel called "Security Center." Start - Settings - Control Panel, and then scroll down. Double Click on Security Settings, and you'll see what's turned on. There should be buttons there to "manage" your firewall settings. The options there may vary with what has been detected on your machine, but you should be able to tell it that you want to use another firewall and it should shut up. You may have to "promise" that you'll "manage your other firewall manually" and "keep it updated" and such, but you should be able to get the messages quieted.

John