Help with error message - Catalog B-tree

Hi

Help needed with error message - Catalog B-tree

Can anyone please help me with the following error when I run Norton Diskdoctor on my G3 Imac - OS 9.0?

The error message reads :

A major error was found in a file record the Catalog B-tree
Node 642, record 3
"Fetch Cache" has an incorrect extent lenght.
The Catalog B-tree is a data structure which keeps tracks of where files are stored on your disk.
(10,7,42)

I have tried fixing this fixing with Norton System 2.00 but no joy.

Any suggestions anyone?

Many thanks

P

1. Cleanse your hard drive and CD collection of anything "Norton". Do this as violently as possible (Norton CD into the microwave is a popular method).

2. Buy DiskWarrior and run it over your drive. An invalid B-Tree extent is no biggie... just fix it soon.

DiskWarrior is absolutely superb.