Thanks Shay.

All is looking well again. Doing a search for com.apple.dock listed two
files:
Users_home/Library/Preferences/com.apple.dock.plist
System/Library/Preferences/com.apple.dockfixup.plist

Removing the user's preference file had no effect except for resetting the
size and magnification options - the icons were still unresponsive.

Removing the System file - dockfixup - was the winner. I don't know where
this file came from. It is dated 12/12/02 and was not recreated after
reboot.

Ciao
Anthony


-----Original Message-----
From: Shay Telfer [mailto:[EMAIL PROTECTED]
Sent: Monday, 17 February 2003 2:35 PM
To: [email protected]
Subject: Re: Dock stops working in OS 10.2.x


>Hi all
>
>I have a blue and white G3 onto which I have recently installed MacOS 10.2
>and all updates. I installed 10.2.4 today hoping it would fix it, but no
>luck. It is reasonably "vanilla" installation with no third party stuff
>running except for Norton AntiVirus and Classic is only used for Outlook.
>
>Sometimes the Dock is not updating the open applications' icons with the
>triangle or removing this when the app is quit. Occasionally the dock
>decides to stop responding altogether. The magnification works, but
clicking
>on the icons has no effect. Very frustrating.
>
>I have searched to the best of my ability through Apple's KB, but didn't
>find anything appropriate. Would it be a case of a corrupted preference as
>used to occur in OS9?

Yes, sounds like it could be. You could try throwing away the 
appropriate '.plist' file, probably being com.apple.dock.plist

Have fun,
Shay