Software Update - Error -1001 Network failure


Help - Mac newby!

Updated to 10.4.4 no problems, but now cannot get Software Updater to run - reports error -1001 No network connection. (but I can log on here lol)
Searched various threads and tried some of the proposed fixes but no joy:
[/LIST]Logged in as new Admin
[/LIST]Deleted various plist files & folders
[/LIST]Fixed folder '14' - although my error is different
[/LIST]Switched off, reset, rebooted, kicked, etc

So now what? Any ideas?

Thanks (and greetings to the forum)